Maryland · Whole system
HVAC Installers in Maryland
Complete heating and cooling system installation by a crew that has been replacing systems in Montgomery County since 1985.
When both halves of a system are due, replacing them together is nearly always the better project: the coil and the blower are matched, the refrigerant circuit is new end to end, the ductwork gets corrected once, and you get one warranty and one commissioning report rather than a hybrid of old and new. This is the work we do most — full system replacement in homes between forty and a hundred years old, where nothing is quite standard and the existing installation was done by three different contractors across three decades.
Our installation standard does not change with the price of the equipment. Load calculation before selection. Static pressure measured before the quote. Nitrogen purge during brazing. A 500-micron vacuum held and verified. Refrigerant weighed in. Airflow set to the manufacturer's target. Permit filed, inspection attended, commissioning sheet left with the equipment. Most system failures we are called to repair in year three trace back to one of those steps being skipped in year one.
Where we workScope
What the job actually includes
- Whole-home Manual J load calculation and duct system evaluation
- Matched AHRI-certified equipment selection with written options at two or three price points
- Furnace or air handler, condenser or heat pump, coil, line set, pad, disconnect and thermostat
- Duct sealing and return-side corrections quoted transparently as separate line items
- Condensate management with safety switches on any equipment above finished space
- Full commissioning: superheat, subcooling, static pressure, temperature rise, combustion analysis
- Permit filing, inspection attendance, warranty registration and rebate paperwork
- Old equipment and refrigerant recovered and disposed of legally
Maryland specifics
Code, permits and rebates
All equipment we install meets or exceeds the current federal minimums for the southeastern region — 14.3 SEER2 for split air conditioners and 95% AFUE for most gas furnaces — and Maryland has adopted the 2021 IECC, which governs duct insulation and sealing on new distribution. Montgomery County DPS issues the mechanical permit; electrical work is permitted and inspected separately. Between the federal 25C credit, EmPOWER Maryland utility rebates through Pepco and Washington Gas, and manufacturer promotions, a qualifying high-efficiency system often carries several thousand dollars of combined incentive. We prepare the documentation.
Licensing
MD HVACR Contractor License #01-XXXXX. All refrigerant handling is performed by EPA Section 608 certified technicians, and equipment replacement is permitted and inspected through the county.
Process
How we run a hvac installation job
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Assessment visit
We measure the house, read the existing system, look at the duct layout, check the electrical service and ask how you actually live in the house — which rooms are uncomfortable, when, and how long the problem has existed.
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Written proposal with options
Two or three configurations with model numbers, AHRI match certificates, efficiency ratings, sound ratings, warranty terms and the full scope of ancillary work. No verbal quotes and no line items that appear on installation day.
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Permit and pre-installation planning
Permit filed, equipment ordered and staged, and a walkthrough of where crews will work, where materials will stage and how the house will be protected.
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Installation
Floor protection down, old equipment recovered and removed, new equipment set, connected, sealed and evacuated. Most single-system changeouts complete in one day; full retrofits take longer and are staged so the house stays livable.
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Commissioning and follow-up
Full measured commissioning, thermostat setup and a walkthrough of the system. We schedule a seasonal follow-up so the system is verified in the opposite mode before you need it.
Pricing
What moves the price
We do not publish a single number, because a number without your house attached to it is marketing rather than information. These are the variables that actually decide what a job costs, and we itemise all of them in writing before any work begins.
Scope: changeout versus retrofit
Swapping equipment in place is the baseline. Relocating an air handler, rebuilding a plenum, adding returns or zoning the house are separate scopes with real value, and we price them so you can choose.
Equipment tier
Single-stage, two-stage and variable-speed inverter systems span a wide range. In Maryland's humid summers, the comfort difference between single-stage and variable-speed is larger than the efficiency difference.
Home age and access
A 1990s Germantown colonial with a basement air handler is a straightforward day. A 1925 Takoma Park home with an attic air handler, knob-and-tube-era wiring nearby and a historic district review is a different project.
Local coverage
HVAC Installers by service area
Every one of these pages is written for that specific market — the housing stock we actually find there, the permitting authority, the utility situation and the failure patterns that repeat in those streets.
Montgomery County
HVAC Installation in Silver Spring
Full system replacement in Silver Spring, from Woodside Park to White Oak
Read more →Montgomery County
HVAC Installation in Olney
Whole-system installation from our Olney base
Read more →Montgomery County
HVAC Installation in Potomac
Full-property system planning for Potomac estates
Read more →Montgomery County
HVAC Installation in Bethesda
Multi-system installation for Bethesda homes with real zoning requirements
Read more →Montgomery County
HVAC Installation in Germantown
Full system replacement across Germantown's planned communities
Read more →Montgomery County
HVAC Installation in Takoma Park
Whole-house comfort systems for Takoma Park's un-ducted historic homes
Read more →Questions
HVAC Installers questions
How do I know if I should repair or replace my system?
What happens if the equipment does not fit or the ducts are wrong?
Do you offer financing?
What warranty comes with a new system?
Related
Work that usually comes up alongside this
Cooling
Air Conditioning Installation
Right-sized air conditioning installed to Manual J load calculations, with the county mechanical permit pulled and the ductwork checked before we quote.
Read more →Heating
Heating & Furnace Installation
High-efficiency gas furnaces and heat pumps sized by load calculation, with combustion analysis and venting done to code — not eyeballed.
Read more →Whole system · 24/7
HVAC Repair
One number for heating, cooling, heat pump and control faults — diagnosed by measurement, with the readings written on your invoice.
Read more →Cooling
Central Air Conditioning System Installation
Whole-house central air for homes that have never had it, including the duct design work that decides whether the second floor is actually comfortable.
Read more →Talk to a technician
Tell us what the house is doing.
Describe the problem and we will tell you what it usually means, what it typically costs to diagnose, and when we can be there. No obligation, no scripted sales call.
Mon–Fri 7:00am–6:00pm · Saturday 8:00am–2:00pm · 24/7 emergency service