Heating
Furnace and heat-pump repair, tune-ups, and replacement to keep you warm all winter long.
Book heating service →Westerville & Greater Columbus · Family-owned since 1998
Heating, cooling & plumbing you can count on — day or night.
Two generations of the Brennan family, one promise: show up on time, quote a fair flat price, and fix it right. Book a visit in about 30 seconds with Riley, our AI assistant.
Live AI assistant — ask Riley anything, or book below
★★★★★ 4.9 · 600+ reviews
Licensed · Bonded · Insured
24/7 emergency — no overtime
Upfront flat-rate pricing
4.9/5 across 600+ Google reviews
Licensed, bonded & insured
25+ years serving Greater Columbus
Upfront flat-rate pricing, no surprises
What we do
One team for your whole home
From a no-heat emergency to a leaky faucet or a brand-new system, one trusted crew handles it all — heating, cooling, and plumbing, done right the first time.
Air Conditioning
A/C repair, seasonal tune-ups, and new-system installs so summer never gets the better of you.
Book A/C service →Plumbing
Leaks, clogs, fixtures, and repipes — fast, clean, and done right the first time.
Book a plumber →Water Heaters
Tank and tankless repair and installation — often same day, with hot water restored fast.
Ask about water heaters →Drains & Sewer
Drain cleaning, camera inspections, and sewer-line repair to stop backups for good.
Clear my drain →Emergency Service
No heat, no A/C, or a burst pipe? We answer day or night — and never charge overtime fees.
Get help now →
90%
of repair calls completed the same day you reach out.
Why Brennan & Sons
Home service that treats your house like our own
Two generations of the Brennan family have built this company on doing the job right, charging a fair price, and showing up exactly when we say we will.
100% satisfaction guarantee
If it isn't right, we make it right — backed by our workmanship warranty on every job.
Same-day & 24/7 emergency service
No heat or a burst pipe at 2am? A real person answers and we get a truck rolling — no overtime fees.
Upfront, flat-rate pricing
You approve the price before we start — no hourly meters, no surprises on the invoice.
Licensed, insured & NATE-certified
Background-checked pros who show up on time and treat your home with respect — shoe covers and all.
Comfort, dialed in
The right temperature, in every room
Great home comfort isn't just a working system — it's the little things done right: balanced airflow, a thermostat that actually holds, and a plan to catch problems before they leave you sweating (or shivering).
Smart-thermostat setup — we install and dial in Nest, ecobee, and Honeywell so your schedule runs itself.
Seasonal maintenance plans — priority scheduling and two tune-ups a year to keep everything humming.
Indoor-air-quality add-ons — filtration, humidifiers, and duct sealing for cleaner, comfier air.
New customers
Your first visit, made easy
No phone tag, no surprise fees. Here's exactly what to expect.
1
Book in ~30 seconds
Online, by phone, or right here with Riley — whatever's easiest for you.
2
We confirm & show up
You get a confirmation and an arrival window, plus a text when your tech is on the way.
3
Upfront price, done right
We diagnose it, quote a flat price before any work begins, and fix it — guaranteed.
Seasonal Special
$89 heating or A/C tune-up
Everything you need to stay comfortable
- 21-point system inspection
- Safety & carbon-monoxide check
- Filter check & performance report
- Priority scheduling all season
One unit, standard systems. A fictional demo offer — see disclosure below.
Meet the family
The Brennans
Bill Brennan started the company out of a single truck in 1998. Today his kids Dan and Kevin run it — same family, same phone number, same promise to treat every home like it's their own.
Their philosophy is simple: show up on time, explain the problem in plain English, quote the price before any work begins, and stand behind it. No pressure, no upsells — just honest home comfort.
NATE-certified technicians
Licensed, bonded & insured
Family-owned since 1998
Dan Brennan
Co-Owner · Master HVAC Tech
Second-generation, NATE-certified, and happiest when a system runs perfectly quiet.
Kevin Brennan
Co-Owner · Master Plumber
Finds the leak everyone else missed, then leaves your home cleaner than he found it.
Sofia Reyes
Customer Care Lead
The friendly voice who makes sure you're scheduled fast and never left guessing.
Customer love
Central Ohio trusts Brennan & Sons
4.9
★★★★★
from 600+ verified Google reviews
★★★★★
"Our furnace quit on the coldest night of January. Riley booked us that evening and Dan had us warm again by 9pm. Fair price, no upsell — they just fixed it."
★★★★★
"Kevin found a slab leak two other plumbers missed, fixed it clean, and walked me through the whole thing. We won't call anyone else."
★★★★★
"Booked a new A/C online at 11pm, got a text when the tech was on his way, and it was installed the next day. Financing made it painless. This is how it should be done."
Financing & warranties
Comfort that fits your budget
Flexible financing on new systems — and rock-solid guarantees that back up every job we do.
Financing on new systems
0% for 12 monthsLow monthly paymentsSynchronyWells FargoQuick approvals
A new furnace, A/C, or water heater shouldn't break the bank. Ask Riley about current financing and we'll find a plan that fits your budget.
Guarantees & warranties
10-yr parts warranty2-yr workmanship100% satisfaction
Upfront flat-rate pricing, no overtime fees, and a satisfaction guarantee on every visit — in writing.
Service area
Proudly serving Greater Columbus
Office
1820 Sunbury Commons Dr
Westerville, OH 43081
Phone
(614) 555-0188Hours
| Monday – Friday | 7:30a – 6:00p |
| Saturday | 8:00a – 2:00p |
| Sunday | Emergency only |
| Emergency line | 24 / 7 |
Good to know
Frequently asked questions
Estimates on new-system installs are always free. For repairs there's a $59 diagnostic fee to pinpoint the problem — and we waive it entirely when you move forward with the repair.
Yes. No heat, no A/C, or a burst pipe doesn't wait for business hours, and neither do we — a real person answers any time, with no overtime fees on nights or weekends. (If you ever smell gas, leave the house and call 911 and your gas company first, then call us.)
In most cases we offer same-day service, and true emergencies jump to the front of the line. Book online or call (614) 555-0188 and we'll find you the soonest available window.
We're based in Westerville and serve the entire Greater Columbus area — including Dublin, Worthington, Gahanna, New Albany, and the surrounding suburbs. Not sure if you're in range? Just ask Riley.
Yes — we offer flexible financing, including 0% plans for qualified buyers, so a new furnace, A/C, or water heater fits your monthly budget instead of your savings. Ask Riley for current options.
Absolutely. Every technician is licensed, bonded, insured, NATE-certified, and background-checked — and they'll treat your home with respect, shoe covers and all.
Ready for home comfort you can count on?
Join hundreds of central Ohio homeowners who trust Brennan & Sons for honest, on-time heating, cooling & plumbing.
