Southern Maryland's local HVAC team · since 2012
Comfort you can count on, every season.
Fast, friendly and affordable heating and air conditioning service for homes across St. Mary's and Calvert counties, from a family-run company in Hollywood.Fast, friendly heating and AC for St. Mary's and Calvert homes.
- Upfront pricing
- No pushy sales
- Licensed & insured
- 4.9
- Google rating
- 387+
- Google reviews
- 14+
- years serving SOMD
How can we help?
Service, maintenance & comfort solutions
Schedule service, keep your system running strong, or explore your options for a new system.
Schedule a repair
Something not working? Pick a time that suits you.
Book a tune-up
Keep it running safely and efficiently all season.
Build your quote
Compare new systems side by side in a few minutes. We send the written quote.
Build your quoteHow it works
Comfort, in four easy steps
- 1
Book
Book online in about two minutes, or call the office.
- 2
Diagnose
A trained Graves technician finds the real cause.
- 3
Approve
You see the price up front and approve it before any work.
- 4
Relax
We fix it right and leave your home clean. Then tell us how we did.
What we do
Heating and cooling, done right
Repair, replacement and maintenance for every major brand, from gas furnaces to ductless mini-splits.
Heating
Furnaces, heat pumps, dual-fuel and oil systems.
- Furnace repair
- Furnace replacement
- Furnace tune-up
- Heat pump repair
- Heat pump replacement
- Heat pump tune-up
- Ductless mini-splits
Cooling
Central air, heat pumps and ductless mini-splits.
- AC repair
- AC replacement
- AC tune-up
- Ductless mini-splits
- Indoor air quality
Why Graves
The Graves promise
What you can expect from every visit.
Upfront pricing
You approve every repair and its price before any work begins. No surprise fees.
No pushy sales
We recommend only what your system needs to run safely and well.
Free second opinions
Got a big quote from someone else? Send it to us and we'll give you an honest take.
Flexible financing
Spread the cost of a new system over convenient monthly payments.
Maintenance membership
Graves Membership Club
Prevent breakdowns, save on repairs, and keep your home comfortable all year long.
Essential oil coverage: Precision tune-up for an oil furnace: combustion analysis and burner adjustment, a new oil nozzle, and a new oil filter and pump strainer. Does not include heat exchanger cleaning.Complete oil coverage: Everything in Essential — combustion analysis and burner adjustment, a new oil nozzle, a new oil filter and pump strainer — plus precision heat exchanger cleaning.
- Same-day priority scheduling
- No service fees on repairs
- 3-year labor warranty
- Indoor and outdoor coils cleaned
- Next-day priority scheduling
- 50% off service fees
- 2-year labor warranty
- Tune-ups plus deep condenser cleaning
- Priority over non-members
- 25% off service fees
- 1-year labor warranty
- Two seasonal tune-ups
Prices for one system. Pick how many systems and whether you heat with oil, and every plan updates.
Recent installs
Our work speaks for itself
Real Graves jobs in Southern Maryland homes: clean installs, custom sheet metal and tidy finishes.
Local and family-run
Your neighbors, not a call center.
We've served homeowners, property managers and businesses across the Tri-County area since 2012. When you call, you reach our office in Hollywood. When we arrive, it's a trained Graves technician who treats your home like their own.
We'd love to earn your business and build a relationship that lasts.
- Lincoln Tech Trained
- 25+ Years in HVAC
- MD Master HVAC (2012)
- Pax River NAS: Commercial & Industrial
- Residential & Light Commercial
- Locally Owned & Operated
Ricky Graves, Owner
About usFrom the blog
Expert advice
Tips on heating, cooling, energy savings and indoor air quality.
Fall heating tune-up checklist for Southern Maryland homes
Before the first cold night: what you can check yourself, what a professional tune-up covers, and why fall is the time to do it.
Read moreRepair or replace? When it's time to upgrade your heating and cooling
Age, repair history, refrigerant and comfort: the honest way to decide between one more repair and a new system.
Read moreSub-freezing temps are coming to SOMD!
What to expect from your heat pump, gas furnace or oil furnace when a hard freeze settles over Southern Maryland.
Read more
Service area
Proud to serve Southern Maryland
Our vans are on the road across St. Mary's and Calvert counties every weekday.