Updated November 2026 · 48 verified hvac contractors · CAN-SPAM-aware

Gaithersburg HVAC Contractors Contact List — 48 businesses, 8 with email

This contact list covers 48 hvac contractors in Gaithersburg, Maryland, delivered as Excel and CSV files the moment you pay $9 USD. Of the 48 businesses, 8 have an email address, 42 a phone number, 36 a website, 47 a street address and 47 a Google rating — a blank cell means the business does not publish that field. Use it for cold email, calling or direct mail to hvac contractors in Gaithersburg, Maryland; one purchase includes free updates.

Total HVAC Contractors
48
Across Gaithersburg
With Email
8
17% of listings · 50% corporate domain
Avg Rating
4.02/5
22,683 total reviews
Top Rated
34
Rated 4.5 or higher

The Gaithersburg, Maryland hvac contractors list has 48 businesses, 8 of them with a business email. Each record has the business name, phone, address, website and Google rating. One-time $9 USD — download Excel and CSV right after checkout, no subscription.

/ 01 — Sample previewSee what's in the file

Five rows from the full 48-row dataset, sorted by rating & review count. The full file has one row per business with 16 columns: business name, email, email type (business or personal), phone, street address (with postal code), city, state/province, country, Google rating, review count, website, email quality, audit date, and any other emails and phones we found for the business with where we found them. The CSV adds email_2, email_3… where a business has more than one address. Service-area businesses (mobile mechanics, handymen, cleaners) deliberately don’t list an address on Google, so that column is blank for about 2% of rows.

hvac-contractors-gaithersburg-md-usa.xlsx / .csv · 48 rows · 16 columnsPREVIEW
NameRatingReviewsEmail
Smock Heating & Air★ 5.0244—
Sichinava Heating and Air Conditioning★ 5.0168i***@sichinavahvac.com
Mario Bro, LLC★ 5.053s***@mariobrohvac.com
Mora Home Services★ 5.045—
Delta Flex Mechanical★ 5.018f***@gmail.com
+ 43 more rows in the full downloadExcel · CSV

/ 02 — Market insightGaithersburg's hvac contractors market in numbers

“

Gaithersburg holds one of the largest concentrations of hvac contractors in Maryland at 48 active operations. The market is mature: 8% of operators have corporate domain emails (a strong signal of established branding) and the average business carries 473 reviews on Google. For B2B sellers, this means a market that responds to professional outreach at high-quality email addresses.

48
Active hvac contractors
8%
Corporate domain emails
473
Avg Google reviews

/ The dataGaithersburg hvac contractors: ratings, email, hours and categories

Google ratings

47 of the 48 hvac contractors in Gaithersburg have a Google rating; 1 has none yet. Of those, 34 are rated 4.5 or higher, 3 between 4.0 and 4.4, 2 between 3.0 and 3.9 and 8 below 3.0. 17 have 100 or more Google reviews.

4.5 and higher34
71%
4.0 – 4.43
6%
3.0 – 3.92
4%
Below 3.08
17%
No rating yet1
2%

Email addresses

8 of the 48 have an email address we could verify. Of those, 4 are on the business's own domain and 4 on another domain, such as Gmail or Outlook. The other 40 have no verified email.

Own-domain email4
8%
Other email (Gmail, Outlook …)4
8%
No email40
83%

Opening hours

47 of the 48 list their opening hours on Google. Of those, 32 are open on Saturday or Sunday, 23 on Sunday and 14 around the clock.

Hours listed47
98%
Open at the weekend32
67%
Open on Sunday23
48%
Open 24 hours14
29%

Google categories

Google files these 47 hvac contractors under 8 categories. The most common are HVAC contractor (25), Air conditioning contractor (8), Heating contractor (5), Heating equipment supplier (4) and Plumber (2).

HVAC contractor25
52%
Air conditioning contractor8
17%
Heating contractor5
10%
Heating equipment supplier4
8%
Plumber2
4%

ZIP codes

The 47 with a postal code sit in 3 ZIP codes. The busiest are 20879 (21), 20877 (17) and 20878 (9).

2087921
44%
2087717
35%
208789
19%

Compared with Maryland

71% of Gaithersburg's hvac contractors are rated 4.5 or higher, against 73% of the 701 across Maryland. 17% have an email address we could verify, against 29% across Maryland. 67% open at the weekend, against 62% across Maryland.

Rated 4.5+ — Gaithersburg34
71%
Rated 4.5+ — Maryland512
73%
With email — Gaithersburg8
17%
With email — Maryland205
29%

/ 03 — Built forWho buys this list

A

Field service software

ServiceTitan, FieldEdge, Housecall Pro, and HVAC-specific dispatch and inventory platforms.

B

HVAC supply & dealer reps

Carrier, Trane, Lennox, and Daikin dealer programs, parts wholesalers, refrigerant suppliers, and equipment dealers.

C

Marketing & seasonal demand

Local SEO, Google Ads, financing-partner platforms, and demand-spike marketing aimed at HVAC contractors.

/ 04 — QuestionsFrequently asked

What exactly is in the download?+

A row per business with name, phone, postal code, website URL, parent domain, Google rating, review count, the email address where one was found, and the street address where the business publishes one (service-area businesses don't list one on Google) — as CSV, XLSX and JSON. The five-row preview above is drawn live from the file you will receive.

Can I use this list for cold email outreach under CAN-SPAM?+

These are publicly-listed business contacts, not an opt-in email list. Buying this list is not a compliance guarantee and this is not legal advice — you are responsible for evaluating CAN-SPAM and any other applicable law for your own campaign, and should talk to a lawyer if you are unsure. Our Compliance & Responsible Use page sets out the specific rules.

Data sourcing, update frequency, bundle pricing & refunds →

/ 05 — Browse moreOther hvac contractors lists in United States

/ DirectoryBrowse HVAC Contractors in Gaithersburg

Find a verified hvac contractor near you. Get directions or visit their website directly — sorted by Google rating.

Smock Heating & Air

★ 5.0 · 244 reviews
HVAC Contractor · Gaithersburg

Sichinava Heating and Air Conditioning

★ 5.0 · 168 reviews
HVAC Contractor · Gaithersburg

Mario Bro, LLC

★ 5.0 · 53 reviews
HVAC Contractor · Gaithersburg

Mora Home Services

★ 5.0 · 45 reviews
HVAC Contractor · Gaithersburg

Delta Flex Mechanical

★ 5.0 · 18 reviews
HVAC Contractor · Gaithersburg

Gaithersburg Heating & Air Conditioning

★ 5.0 · 14 reviews
HVAC Contractor · Gaithersburg

Comfort Air Solutions

★ 5.0 · 12 reviews
HVAC Contractor · Gaithersburg

Gaithersburg Hvac contractor

★ 5.0 · 10 reviews
HVAC Contractor · Gaithersburg

Aspen Services, LLC Heating and Air Conditioning

★ 5.0 · 5 reviews
HVAC Contractor · Gaithersburg

Air Quality Heating & Air Conditioning, LLC

★ 5.0 · 4 reviews
HVAC Contractor · Gaithersburg

Tuckers AC & Heating LLC

★ 5.0 · 2 reviews
HVAC Contractor · Gaithersburg

Boland Supply

★ 5.0 · 1 review
HVAC Contractor · Gaithersburg

GAC Services

★ 4.9 · 8,053 reviews
HVAC Contractor · Gaithersburg

Mallick Plumbing & Heating, Inc.

★ 4.9 · 2,476 reviews
HVAC Contractor · Gaithersburg

Presidential, Inc.

★ 4.9 · 1,904 reviews
HVAC Contractor · Gaithersburg

Rod Miller Heating and Air Conditioning

★ 4.9 · 703 reviews
HVAC Contractor · Gaithersburg

Metro Services HVAC

★ 4.9 · 425 reviews
HVAC Contractor · Gaithersburg

B&B Air Conditioning & Heating Service

★ 4.9 · 341 reviews
HVAC Contractor · Gaithersburg

Atlantic Coastal Cooling and Heating, Inc. (ACCH)

★ 4.9 · 337 reviews
HVAC Contractor · Gaithersburg

Mannix Heating and Cooling- Gaithersburg

★ 4.9 · 192 reviews
HVAC Contractor · Gaithersburg

P&Y Heating and Cooling

★ 4.9 · 117 reviews
HVAC Contractor · Gaithersburg

Mallick Mechanical Services

★ 4.9 · 65 reviews
HVAC Contractor · Gaithersburg

Super Saving Heating & Cooling

★ 4.9 · 43 reviews
HVAC Contractor · Gaithersburg

Michael Bonsby HVAC, Plumbing & Electrical

★ 4.8 · 2,699 reviews
HVAC Contractor · Gaithersburg

CroppMetcalfe

★ 4.8 · 1,780 reviews
HVAC Contractor · Gaithersburg

James A. Wheat & Sons, Inc.

★ 4.8 · 1,330 reviews
HVAC Contractor · Gaithersburg

Cool Breeze Plumbing, Heating & A/C

★ 4.8 · 718 reviews
HVAC Contractor · Gaithersburg

United Air Temp

★ 4.8 · 473 reviews
HVAC Contractor · Gaithersburg

Hecox Home Services LLC

★ 4.8 · 129 reviews
HVAC Contractor · Gaithersburg

Lennox Stores (Parts Plus)

★ 4.7 · 30 reviews
HVAC Contractor · Gaithersburg

KCK Air Conditioning & Heating Consultants, LLC

★ 4.7 · 13 reviews
HVAC Contractor · Gaithersburg

Refrigeration Heating & Air Conditioning

★ 4.7 · 12 reviews
HVAC Contractor · Gaithersburg

Boland

★ 4.6 · 17 reviews
HVAC Contractor · Gaithersburg

Stang Plumbing & Heating

★ 4.5 · 41 reviews
HVAC Contractor · Gaithersburg

Johnstone Supply

★ 4.2 · 18 reviews
HVAC Contractor · Gaithersburg

Sears Heating and Air Conditioning

★ 4.1 · 91 reviews
HVAC Contractor · Gaithersburg

Harvey W Hottel, Inc.

★ 4.1 · 49 reviews
HVAC Contractor · Gaithersburg

Heating & Air Conditioning

★ 3.7 · 6 reviews
HVAC Contractor · Gaithersburg

CE (Carrier Enterprise)

★ 3.2 · 32 reviews
HVAC Contractor · Gaithersburg

Diversified HVAC Services

★ 2.8 · 12 reviews
HVAC Contractor · Gaithersburg

Densel Company.

★ 1.0 · 1 review
HVAC Contractor · Gaithersburg

Frostvale Air & Comfort Repair

No rating yet
HVAC Contractor · Gaithersburg

Sunset Air & Comfort Experts

No rating yet
HVAC Contractor · Gaithersburg

Pinewood Air & Comfort Specialists

No rating yet
HVAC Contractor · Gaithersburg

Rainbrook Air & Comfort Services

No rating yet
HVAC Contractor · Gaithersburg

Trane - Heating & Cooling Services

No rating yet
HVAC Contractor · Gaithersburg

R&V HVAC Services

No rating yet
HVAC Contractor · Gaithersburg

/ HelpCommon Questions

How do I choose a reliable hvac contractor in Gaithersburg?+

Start with the rating — look for a hvac contractor holding 4.5 stars or higher with a healthy number of recent reviews, which signals consistent, current service. Confirm they're properly licensed and insured for the work you need, and read a few reviews to see how they handle problems, not just praise. The listings below are sorted by Google rating to make this easier.

What's the typical cost of a hvac contractor in Gaithersburg?+

Pricing varies widely by the scope of the job, materials, and how urgent the work is, so there's no single rate. The most reliable approach is to contact two or three hvac contractors directly for a quote on your specific situation. Use the "View on Google Maps" or "Visit Website" buttons on each listing to reach out.

Are these hvac contractors verified?+

Yes. Every listing is sourced from public Google Business Profile data — business name, rating, and review count — collected by our own crawl. We show only what's already public; we don't add or alter business details.

How can I contact a hvac contractor?+

Click "View on Google Maps" to get directions, hours, and the business's public contact options, or "Visit Website" to reach them online. We don't publish private phone numbers or email addresses here — the business's own Google profile and website are the right place to get in touch.

I'm a business owner — how do I update or remove my listing?+

Go to publicleads.com/your-business. You can remove your business or an email address, or fix your phone or email there; we email a confirmation link first, and nothing changes until it is used. For anything else, email support@publicleads.com.

Is your business on this list? Remove it or fix its phone or email. Not on it? Add your business.