HVAC service areas across Montgomery County, Maryland
Shemtov Systems covers Montgomery County, Maryland and the Washington DC metro from its shop at 16501 Batchellors Forest Rd in Olney. The company has been family-owned since 1981, is NATE-certified, and is licensed and insured in Maryland and Washington DC. Call 240-355-3333.
Key takeaways
- The shop is in Olney 20832, and the work covers the county from the DC line to the upcounty towns.
- There are dedicated pages for Silver Spring, Wheaton, Takoma Park, Bethesda, Rockville, Gaithersburg and Olney.
- Work covered is residential and light commercial: air conditioning, heating, heat pumps, ductless systems, ductwork, water heaters and generators.
- Montgomery County's Department of Permitting Services issues the mechanical permit for a system changeout anywhere in the county.
- Incorporated municipalities such as Rockville, Gaithersburg and Takoma Park run their own additional processes on top of the county's.
Which towns have their own page?
Seven towns have a page of their own, each covering the housing stock, the fuel mix, the permitting body and the equipment questions specific to that area: Silver Spring, Wheaton, Takoma Park, Bethesda, Rockville, Gaithersburg, Olney. Those pages are the fastest way to see whether your situation is one we handle every week.
Down-county: Silver Spring, Wheaton and Takoma Park
This is the oldest housing in the service area, which means original ductwork, tight basements and, in Takoma Park, a lot of homes built before central air existed. Start with HVAC service in Silver Spring, Wheaton or Takoma Park.
Central county: Bethesda and Rockville
Bethesda leans toward larger and multi-zone systems and retrofit work in older homes; Rockville mixes mid-century ramblers with newer townhome communities that have their own rules on where an outdoor unit can sit. See HVAC service in Bethesda and Rockville. Rockville is an incorporated city and runs its own permit process alongside the county's.
Up-county: Olney and Gaithersburg
The shop itself is at 16501 Batchellors Forest Rd in Olney, so the upper end of the county is home ground. Olney is largely 1970s to 1990s colonials and townhomes on their second or third system; Gaithersburg adds large 1990s and 2000s subdivisions whose builder-grade equipment is now reaching end of life. See HVAC service in Olney and Gaithersburg.
Do you work outside these seven towns?
Yes. The seven pages exist because those areas come up most often, not because they are the limit. Work also covers Kensington, Chevy Chase, Potomac, Aspen Hill, Brookeville, Sandy Spring, Burtonsville, Colesville, Germantown and the Washington DC metro. If you are not sure whether your address is covered, call 240-355-3333 and ask.
Does the permit process change depending on the town?
The county part does not. Montgomery County's Department of Permitting Services requires a mechanical permit to install, convert or replace HVAC equipment anywhere in the county, and applications are filed electronically. What changes is whether your town adds its own step: unincorporated areas such as Olney have no municipal permit on top, while incorporated municipalities including Rockville, Gaithersburg and Takoma Park run their own processes. A gas appliance changeout also brings a WSSC inspection that an all-electric heat pump does not.
What work is covered across the whole area?
The same services apply everywhere: air conditioning, heating, furnaces, heat pumps, ductless mini-splits, ductwork and zoning, water heaters, whole house generators and light commercial HVAC. Seasonal maintenance is available on a service agreement.
Frequently asked questions
My town does not have its own page. Do you still cover it?
Very likely yes. The seven town pages cover the areas we are asked about most often, not the boundary of the service area, which spans Montgomery County and the Washington DC metro. Call 240-355-3333 with your address and we will tell you straight away.
Which phone number should I call?
Call 240-355-3333. Shemtov Systems is family-owned, and it advertises a 24-hour answering service on that line.
Do you work in Washington DC as well as Maryland?
Yes. Shemtov Systems is licensed and insured to install, service and repair heating and air conditioning in both Maryland and Washington DC, and the DC metro is part of the regular service area.
Do you handle small commercial buildings, not just houses?
Yes. The work is residential and light commercial, which covers offices, retail units, houses of worship and similar small buildings alongside houses. See the light commercial and commercial HVAC pages for what that includes.
Talk to Shemtov Systems
For air conditioning, heating, heat pump, ductless or ductwork help anywhere in Montgomery County or the DC metro, call Shemtov Systems on 240-355-3333.