Blog
Discover expert tips on maintaining optimal indoor comfort, energy efficiency, and air quality for your home. From seasonal maintenance checklists to troubleshooting guides, we cover everything you need to know to keep your home running smoothly year-round.
Electrical
Ceiling Fan Direction In Summer: Which Way And Why
Ceiling fan direction for summer is counterclockwise: push air down for a wind chill effect, then raise the thermostat 4 degrees. The science.
Air Ducts
Wildfire Smoke & Indoor Air Quality In Marin & Sonoma
Wildfire smoke contains PM2.5 and toxic gases standard HVAC filters miss. What protects indoor air quality across Marin, Sonoma and Napa County.
HVAC
HVAC Permits In Marin And Sonoma County
Unpermitted work creates insurance risk and sale complications in Marin, Sonoma and Napa County. What permits protect and how to verify your contractor.
Generators
Standby Generator Vs. Portable: Marin And Sonoma County
Standby generators start on natural gas automatically. Portable units need setup and stored fuel. How Marin and Sonoma County homeowners should choose.
HVAC
Ductless Mini Split Installation In Marin & Sonoma
Older homes in Marin, Sonoma and Napa County are ideal for ductless mini split installation. How zone planning works and why it beats retrofitting ducts.
Electrical
Electrical Panel Upgrade For Solar And EV: Marin And Sonoma
Solar, EV chargers, and heat pumps push older panels past their limits. What an electrical panel upgrade involves in Marin, Sonoma and Napa County.
Electrical
EV Charger Installation Cost: Marin & Sonoma
What home EV charger installation costs in Marin and Sonoma County: Level 2 equipment, panel capacity, permits, and what changes the price.
Air Conditioning
Heat Pump Vs. Air Conditioner: Marin And Sonoma County
Comparing a heat pump vs. air conditioner in Marin or Sonoma County? How they differ in efficiency and why the local climate changes the math.
Air Conditioning
AC Tune-Up In Marin And Sonoma County: What To Expect
An AC tune-up prepares your Marin or Sonoma County system for summer and catches problems before they become expensive. What to expect.
Plumbing
Do I Need a Water Softener? Marin & Sonoma
Do you need a water softener in Marin or Sonoma County? Local water hardness, the signs to check, and how softener installation works.
Energy Efficiency
Home Energy Audit: Marin And Sonoma County Guide
A home energy audit reveals where your Marin or Sonoma County home loses energy and which upgrades deliver the best return. What to expect.
Plumbing
Sewer Camera Inspection: What It Reveals And When To Get One
A sewer camera inspection reveals root intrusion and pipe conditions you can't see. What it shows and when to get one in Marin, Sonoma and Napa County.
Plumbing
Hydro Jetting Vs. Drain Snaking: When To Use Each And Why
Hydro jetting scours pipes clean. Drain snaking punches through clogs. Here's which method Marin, Sonoma and Napa County drains actually need and when.
Water Heaters
Water Heater Repair: Common Problems
No hot water? Leaks or strange noises? Learn the most common water heater repair problems and when to call a pro, Ongaro & Sons serves the North Bay.
Electrical
Backup Generator Install For PG&E Shutoffs
Don't let the next PG&E outage catch you off guard. Get expert backup generator installation guidance & service from Ongaro & Sons.
HVAC
HVAC Zone Control: Smart Heating & Cooling
Want different temperatures in different rooms? A zone control system makes it possible. Expert guidance & install from Ongaro & Sons.
Pipes
Whole House Repipe: When You Need One
From galvanized to copper, know when it's time for a whole house repipe. Expert guidance & service in Marin, Sonoma & Napa from Ongaro & Sons.
Water Heaters
Water Heater Replacement: 5 Signs It's Time For A New Unit
Don't wait for a cold shower. Spot the warning signs early and get expert water heater replacement guidance from Ongaro & Sons in the North Bay.
Water Heaters
Water Heater Installation: Tank Vs. Tankless
Tank or tankless? This guide helps North Bay homeowners choose the right system for water heater installation, expert advice from Ongaro & Sons.
Plumbing
Boiler Installation Guide
From system selection to install day, get expert boiler installation guidance for North Bay homeowners from the team at Ongaro & Sons.
Heat Pumps
Heat Pump Repair: How To Spot Problems Early
Don't wait for a breakdown. Learn to spot common heat pump problems early with heat pump repair guidance from Ongaro & Sons in Marin, Sonoma & Napa County.
Uncategorized
Furnace Repair: What's Making Those Strange Noises
Strange furnace noises are trying to tell you something. Get expert furnace repair guidance from Ongaro & Sons serving the North Bay.
HVAC
Heater Repair: How To Troubleshoot Common Problems
Know when to DIY and when to call a pro. Ongaro & Sons walks you through common heater repair problems serving Marin, Sonoma & Napa County.
Radiant Heating
Radiant Heating Repair: Diagnosing Problems
Radiant floor heating not working? Learn how to diagnose common in-floor heating problems, expert radiant heating repair from Ongaro & Sons in the North Bay.
Pipes
Frozen Pipe Prevention Tips
Prevent frozen pipes in Marin, Sonoma & Napa County homes. Expert tips, cost-saving strategies, and when to call a plumber for California cold snaps.
HVAC
7 Warning Signs You Need Heating Repair
Is your heating system failing? Discover 7 warning signs you need heating repair in Marin, Sonoma, and Napa counties. Expert HVAC service.
HVAC
Complete HVAC Installation Guide
Complete HVAC installation guide covering system options, costs, and what to expect. Expert advice from a North Bay contractor working since 1932.
Plumbing
Plumbing Installation & Repair Guide
Expert plumbing installation & repair guide for Marin, Sonoma & Napa County homes. Water heater repair vs replace, pipe materials & more.
Energy Efficiency
The Complete Guide To Whole Home Electrification
Complete guide to whole home electrification: heat pumps, solar panels, battery storage & costs. Save money, gain energy independence with Ongaro & Sons.
Electrical
Solar Panels With Battery Backup
Rising PG&E rates squeezing your budget? Solar panels with battery backup slash energy bills and keep your home powered during outages.
Energy Efficiency
Home Energy Efficiency Tips
Lower bills, better comfort, smaller carbon footprint. Practical home energy efficiency tips for Marin, Sonoma and Napa County homeowners.
Air Conditioning
AC Maintenance Tips To Avoid Costly Repairs
Annual AC maintenance keeps your system running efficiently and catches issues early. Filter, coil, refrigerant and electrical checks explained.
Pipes
Burst Pipe Emergency: What To Do
A burst pipe floods fast. Shut the main valve, drain the lines, turn off electric, then call a plumber. Step-by-step emergency response.
Energy Efficiency
Residential Solar Energy
Residential solar in the North Bay: how systems work, what they cost and what California homeowners need to know before installing panels.
HVAC
How To Choose an HVAC Company
Compare local HVAC companies on licensing, insurance, manufacturer credentials and reviews. How to vet a contractor in Marin, Sonoma or Napa County.
Electrical
Breaker Box Explained: How Your Panel Works
Your breaker box (electrical panel) routes utility power and protects against overloads. How breakers, busbars and the main work together.
Energy Efficiency
How Solar Energy Works: A Homeowner's Guide
Solar panels convert sunlight into electricity through the photovoltaic effect. The science and what it means for your home's energy bills.
Electrical
Electric Car Charger For Home
Home EV charger installation: Level 2 vs Level 1, panel capacity, permit requirements and what to budget. North Bay homeowner guide.
HVAC
What Do HVAC Contractors Do
HVAC contractors install, repair and maintain heating, cooling and ventilation systems. What the job covers and how to choose a good one.
Radiant Heating
Common Radiant Heating Repair Problems
Cold spots, uneven heat and pressure drops are common radiant heating problems. Causes and repairs for hydronic floor systems in North Bay homes.
Electrical
What Is A SPAN Electrical Panel?
Wouldn't it be nice to have complete control over your electrical box without needing to physically go to it and fumble around with the manual breakers?
Drains & Sewers
Finding Plumbers Near Me
Finding a reliable plumber near you takes more than a quick search. Credentials, insurance, reviews and response time to verify before hiring.
HVAC
How Long Does A Furnace Installation Take?
Furnace installation typically takes 4-8 hours including removal of the old unit. What North Bay homeowners can expect on install day.
Lighting
Smart Home Lighting Systems Explained
Smart lighting systems give you scenes, schedules and voice control across the home. How the technology works and where to start a setup.
Drains & Sewers
Types Of Plumbing Services
Beyond leaks and clogs: a breakdown of residential plumbing services Marin, Sonoma and Napa County homeowners typically need throughout the year.
Furnaces
Signs It's Time For Furnace Cleaning
Yellow soot, weak airflow, longer run times and unusual odors signal it's time for furnace cleaning. Schedule before peak heating season.
Air Ducts
Handling Indoor Air Pollutants At Home
Source control, ventilation, filtration and humidity management work together to handle indoor air pollutants. Practical steps for any home.
Generators
Generators And Battery Backup
Pair a whole-home generator with battery storage for layered backup power. How the two technologies work together during PG&E shutoffs.
Air Ducts
When To Hire Pros For Air Vent Cleaning
Air vents trap dust, pet dander and allergens. Signs your home needs professional vent cleaning and how to find a qualified Marin, Sonoma or Napa County tech.
Water Filters
Best Water Filtration System For Your Home
Whole-house, under-sink, reverse osmosis or pitcher? How to pick the best water filtration system for your home water and household needs.
Air Ducts
Why Clean Air & Water Protect Your Health
Indoor air quality and home water quality directly affect respiratory, skin and digestive health. Why both deserve attention in Marin, Sonoma and Napa homes.
Indoor Air Quality
4 Indoor Pollutants Worth Monitoring
Four indoor pollutants worth tracking with an IAQ monitor: PM2.5, VOCs, CO2 and humidity. How each affects health and what readings to target.
Air Conditioning
Heat Pumps Vs. Air Conditioners
Heat pump or traditional split system? How Marin, Sonoma and Napa County homeowners choose between heating and air conditioning options.
Plumbing
Plumber Vs. Licensed Plumbing Contractor
Not every plumber holds a contractor's license. What the difference means for your project and why licensed contractors matter in California.
Air Conditioning
Air Conditioning Service Guide
From annual maintenance to urgent repairs, here is what air conditioning service covers for Marin, Sonoma and Napa County homeowners.
Air Ducts
Is Duct Cleaning A Waste Of Money
Duct cleaning helps in some homes and wastes money in others. How to tell the difference and when North Bay homes actually need it.
Gas
California's Gas Appliance Ban Explained
California is phasing out new gas appliances starting 2030. What the rule covers, what it doesn't, and how North Bay homeowners can prepare.
Drains & Sewers
Do I Need Drain Cleaning
Drain cleaning isn't just for clogs. Routine maintenance prevents backups, slow drains and pipe damage. How often to schedule in your home.
Air Conditioning
How Central Air Conditioning Works
Central air conditioning is a modern necessity that a significant number of homes in hot summer locations can't do without.
Energy Efficiency
Home Energy Score: What The Rating Means
A Home Energy Score is a federal rating that benchmarks your home's energy use. How the audit works and what the score means in California.
Plumbing
14 Signs Of Bigger Plumbing Problems
Slow drains, running toilets, water stains and pressure drops can signal bigger plumbing issues. Fourteen signs Marin, Sonoma and Napa homes shouldn't ignore.
Air Conditioning
What Is A Heat Pump And How Does It Work?
A heat pump moves heat instead of generating it, providing efficient heating and cooling in one system. How modern heat pumps work in California.
Electrical
Do I Need A New Electrical Panel
Outdated panels can't keep up with modern loads (EVs, heat pumps, solar). Signs your home needs an electrical panel replacement.
Lighting
Outdoor Lighting Guide For Your Home & Yard
Outdoor lighting blends security, aesthetics and curb appeal. How to plan landscape, path and accent lighting for Marin, Sonoma and Napa County homes.
Water Filters
How Water Filtration Works
Water filtration removes particles, chlorine, metals and contaminants through sediment, carbon, RO and other stages. How each stage works.
Indoor Air Quality
Indoor Air Quality: What You Should Know
Indoor air quality (IAQ) measures pollutants like dust, pollen, VOCs and CO. Why it matters and how to test and improve air in your home.
HVAC
What Is HVAC? A Simple Guide For Homeowners
HVAC stands for heating, ventilation and air conditioning. How residential systems regulate temperature, airflow and humidity in your home.
Air Ducts
15 Causes Of Indoor Air Pollution
Cooking, cleaning, candles, off-gassing furniture and pets all contribute to indoor air pollution. Fifteen sources homeowners can address.
Electrical
5 Electrical Safety Tips For Homeowners
Five home electrical safety tips: GFCI outlets, breaker maintenance, surge protection, cord care and when to call an electrician.
Air Ducts
How To Clean Air Ducts Yourself
DIY duct cleaning has limits. What homeowners can safely do, when to call a professional, and how to avoid spreading dust through the system.
Air Conditioning
Why Is My AC Not Cooling? Causes And Fixes
AC running but not cooling? Common causes include low refrigerant, dirty coils, blocked condensate drain or failing capacitor. How to diagnose each.
Furnaces
How To Clean A Furnace In 4 Winter-Ready Steps
Four pre-winter furnace cleaning steps: filter, blower compartment, burners and vents. What homeowners can do and when to call a pro.
Electrical
Common Electrical Repairs
From flickering lights to dead outlets, here are the six most common home electrical repairs and when each one calls for a licensed electrician.
Drains & Sewers
How To Choose The Right Plumber Near You
Choosing a plumber: license check, insurance, reviews, upfront pricing and scheduling. What to ask before hiring in Marin, Sonoma or Napa County.
HVAC
HVAC Repair & Maintenance Cost Guide
What does HVAC repair really cost in the North Bay? Typical price ranges for common repairs and how maintenance plans reduce annual spend.
Air Conditioning
How To Troubleshoot AC Failure
Air conditioner not blowing cold? Check thermostat, filter, breaker, and condensate line before calling a tech. The troubleshooting order.
Furnaces
How To Fix Common Gas Furnace Problems
Strange noises, no heat, short cycling and tripped limits: how to diagnose and fix common gas furnace problems before they become emergencies.
Air Conditioning
Heat Pump Water Heaters: How They Work
Heat pump water heaters cut hot water energy use by 60-70% versus electric resistance. How they work and which homes are a fit.
Electrical
When To Upgrade Your Electrical Panel
Outdated electrical panels are a fire hazard and bottleneck for modern loads. Signs your North Bay home needs a panel upgrade and what to expect.
Electrical
Why Choose Mitsubishi Electric HVAC
Mitsubishi Electric ductless systems lead the industry in efficiency and quiet operation. Why Marin, Sonoma and Napa County homeowners choose them.
Generators
Natural Gas Home Generator
Natural gas home generators run on existing utility supply, no fuel storage needed. How they compare to propane and diesel options.
HVAC
HVAC Holiday Maintenance
Avoid HVAC failures during the holidays with pre-season filter, thermostat and system checks. What to inspect in Marin, Sonoma and Napa County homes.
Furnaces
High-Efficiency Furnace Systems Explained
High-efficiency furnaces hit 90-98% AFUE and cut heating costs. How the technology works and when an upgrade makes sense for North Bay homes.
Water Filters
Best Water Filtration System For Home
From under-sink to whole-house, here are the best water filtration options for North Bay homes and how to pick the right system for your water.
Indoor Air Quality
Keep Wildfire Smoke Out Of Your House
Wildfire smoke contains fine particulates standard filters miss. How to seal, filter and ventilate your North Bay home during smoke events.
Pipes
When To Replace Galvanized Pipes
Galvanized pipes corrode from the inside out, dropping water pressure and leaching iron into drinking water. When replacement becomes necessary.
Drains & Sewers
Plumbing Leak Detection Tips
Hidden plumbing leaks waste water and damage drywall before you notice. Detection methods, warning signs and when to call a plumber.
HVAC
Whole-House Generators & Your HVAC System
Will your whole-house generator actually run the AC during a PG&E shutoff? How generator sizing and HVAC loads work together.
Energy Efficiency
Hot Water Recirculation Pumps Save Water
Hot water recirculation pumps deliver hot water instantly, eliminating the cold-water wait and saving thousands of gallons a year per home.
Energy Efficiency
Whole Home Performance Test
A whole home performance test pinpoints air leaks, insulation gaps and HVAC inefficiencies. What it covers for Marin, Sonoma and Napa County homes.
HVAC
HVAC Zoning Systems Explained
HVAC zoning systems use dampers and thermostats to control room-by-room temperatures from a single HVAC unit. How they work and when to install.
Water Heaters
5 Things You Don't Know About Tankless Water Heaters
Tankless water heaters last 20+ years and never run out of hot water, but cost more upfront. Five facts every North Bay homeowner should know.
Ductless Mini Splits
Mini Split Pros And Cons
Mini split systems offer zone control without ducts, but they have trade-offs. Pros, cons and when they make sense for North Bay homes.
Drinking Water
What's In Your Tap Water? Homeowner's Guide
Hard water minerals, chlorine, lead and emerging contaminants can hide in tap water. What testing reveals about North Bay home water.
Drains & Sewers
How To Prevent Sewer Backups In Your Home
Tree roots, grease and aging clay pipes cause most sewer backups. How to prevent them and protect your North Bay home from costly drain failures.
Air Conditioning
Air Conditioner Maintenance Benefits
Annual AC maintenance pays for itself in lower bills, longer system life and fewer breakdowns. What a tune-up covers in Marin, Sonoma and Napa County homes.
Air Conditioning
How To Add AC To An Existing HVAC System
Adding AC to an existing forced-air heating system is one of the most common HVAC upgrades. What's involved and when ductless makes more sense.
Water Filters
Whole House Water Filter
Whole-house water filters protect every fixture from sediment, chlorine and minerals. How they work and when one makes sense for your home.
Water Heaters
Which Water Heater Is Best
Tank, tankless, hybrid or heat pump? Compare upfront cost, recovery rate, lifespan and operating cost to find the best water heater for your home.
Air Conditioning
3 Things To Know About Your AC
Your air conditioner is sort of like your phone or computer or the water that comes out of your faucet. It's a modern convenience and you expect it to work.
Water Heaters
When To Replace Your Water Heater
Rusty water, lukewarm showers, pooling around the tank: signs your water heater needs replacement before it fails. Marin, Sonoma and Napa guide.
Attic Insulation
Benefits Of Attic Insulation
Hot upstairs in summer, cold downstairs in winter? Your attic insulation may be the culprit. Benefits of upgrading insulation in North Bay homes.
Furnaces
5 Winter Furnace Maintenance Tips
Avoid winter furnace breakdowns. Five maintenance steps every North Bay homeowner should run before cold weather hits Marin, Sonoma and Napa County.
Drains & Sewers
How To Prevent Slow, Clogged Drains At Home
Most household clogs are preventable. Simple habits that keep kitchen, bathroom and laundry drains flowing freely in Marin, Sonoma and Napa County homes.
Indoor Air Quality
Air Filtration And Indoor Air Quality
Air filtration and indoor air quality are tightly linked. How MERV ratings, filter changes and whole-home filtration improve the air you breathe.
Air Ducts
Air Purifier Benefits For Better Breathing
Indoor air can be more polluted than outdoor. Air purifiers capture allergens, smoke and VOCs. How the benefits stack up for North Bay homes.
Air Ducts
4 Myths About Air Duct Cleaning
Common air duct cleaning myths debunked: most duct cleaning claims are marketing, but real benefits exist for specific situations. What's true.
Water Filters
Safer Drinking Water In Your Home: A Guide
Tap water travels through old pipes and treatment chemistry before reaching your home. How to test for contaminants and choose a treatment system.
Air Conditioning
5 Easy Ways To Boost AC Performance
Five practical steps to boost AC performance and lower summer bills in Marin, Sonoma and Napa County homes. Filter, thermostat, ducts, shading and more.