Littlejohn HVAC Solutions is a licensed HVAC contractor in Durham, NC for older homes that need smarter airflow rather than bigger equipment: duct redesigns in Trinity Park bungalows, ductless systems in Old West Durham mill houses and furnace service in Forest Hills. We're about 35 to 40 minutes from Burlington by I-85 and run scheduled routes into the city.
Your local HVAC contractor for Durham, NC
Walk down almost any block in Trinity Park and you'll see a hundred-year-old porch with a modern condenser humming next to it. Getting those two eras to cooperate is most of the Durham work we do.
Downtown Durham is about 35 to 40 minutes from our Burlington base by I-85. We plan Durham calls into scheduled routes east, which keeps the wait reasonable. Jesse will call when he's on the way and walk you through what he finds before anything gets replaced. Durham is the center of our wider Durham County service area.
Plaster walls, knee-wall attics and ducts added after the fact
Durham's older neighborhoods were built before central air existed. Trinity Park, Watts-Hillandale and the blocks near Duke's East Campus are full of 1910s–1930s bungalows and foursquares. Most were first heated by coal or oil and later retrofitted with ducts wherever they would fit.
Not all of Durham is old, of course. South Durham along NC 54 and Fayetteville Road filled in with townhomes and subdivisions from the 1990s on, and downtown keeps adding apartments. Those homes bring the usual heat pump repairs, plus clammy rooms when a system is oversized for a tight new building.
On the second floor, that usually means undersized ducts snaking through knee-wall spaces and a single return fighting to pull air back downstairs. Upstairs bedrooms run five to ten degrees warmer than the first floor, and the system never quite catches up. In the crawlspace, ducts sag, joints separate and the house pulls in humid air.
Old West Durham's small mill houses, built around the former Erwin Mills near Ninth Street, have even less room to work with. Some never had ductwork at all.
From Ninth Street to the south side
Our Durham calls reach from Old West Durham and Walltown across to Duke Park and Old North Durham, south through Forest Hills and Hope Valley, and out to the newer neighborhoods near Southpoint. Downtown, the renovated warehouses around Brightleaf Square and the American Tobacco Campus bring occasional light commercial work.
A typical Trinity Park call: the upstairs bedrooms won't cool even though the system is fairly new. Measuring static pressure and room airflow usually shows the equipment is fine and the ducts are the bottleneck. The fix is often a ductwork redesign with properly sized runs and returns, not a bigger unit.
Forest Hills and Hope Valley have larger homes from the 1920s through the 1950s on rolling lots, and many have a basement gas furnace that has outlived two air conditioners. Every fall we check heat exchangers, venting and flame sensors there, and when the furnace nears the end, we talk through whether another furnace or a heat pump makes more sense.
In Old West Durham, the common request is replacing window units in a mill house with no ducts. A multi-zone ductless mini-split system heats and cools each room without tearing into plaster, and the outdoor unit fits on a narrow side yard.
HVAC by home type in Durham
Durham's housing ranges across a century, and each era asks for a different fix.
1910s–1930s bungalows and foursquares
Split system plus air sealing
Many of these houses are balloon-framed, with wall cavities open from the crawlspace to the attic. Warm air rises through them in winter and pulls cold air in below, so first-floor rooms feel drafty. Sealing the attic floor and top plates pairs well with indoor air quality work.
Larger 1920s–50s homes in Forest Hills and Hope Valley
Basement gas furnace with split AC
When a furnace sharing a masonry chimney with the water heater is replaced by a high-efficiency model vented in PVC, the water heater is left alone in an oversized flue. It can draft poorly and condense. We check for that before any furnace replacement and plan a liner if needed.
Newer townhomes and subdivisions in south Durham
Heat pump with a fresh-air intake
Tight newer homes often have a fresh-air intake or ventilation control tied to the HVAC. When its damper sticks open in July, humid outdoor air pours in; stuck shut, the house turns stuffy. We check that control and damper during HVAC maintenance along with charge and airflow.
Common HVAC problems in Durham homes
Durham's older housing stock is behind most of these repeat calls.
| Problem | Why it happens in Durham | What we do |
|---|---|---|
| Plaster dust clogging blowers and coils in renovated homes | Durham's steady stream of old-house renovations sends construction dust through running systems. | We clean the blower and coil, replace the filter and advise sealing returns during work. |
| Equipment too small for additions and finished attics | Bungalows expanded with rear additions or attic bedrooms often kept their original system. | We run a new load calculation, then adjust ductwork or add a ductless zone. |
| Old cast-iron floor registers delivering almost no air | Some homes still use original floor grilles and boots left from coal-fired gravity heat. | We measure airflow, replace restrictive boots and resize branches where the floor allows. |
| Furnaces short-cycling after new windows and added insulation | After weatherization, a furnace sized for a drafty Durham house is suddenly far too big. | We check temperature rise and cycle times, and size any replacement to the improved house. |
HVAC services in Durham, NC
Durham's housing ranges from 1910s bungalows to brand-new townhomes. These are the services we're asked for most in the city.
Ductwork Installation & Repair
Complete duct system installation and replacement for crawlspaces and attics, designed for real airflow so every room gets the air it should.
Learn moreDuctless Mini-Split Installation
Efficient heating and cooling for additions, garages, bonus rooms, and older homes with no ductwork, sized room by room and installed cleanly.
Learn moreAC Repair
Honest air conditioner diagnosis and repair, often the same day. We find the actual failed part and fix it instead of pushing a new unit.
Learn moreHeat Pump Services
Repair, replacement and tune-ups for the heat pumps that heat and cool most Burlington homes, including defrost, reversing valve and backup heat issues.
Learn moreIndoor Air Quality & Crawlspace Humidity
Dehumidifiers, better filtration, and duct fixes that tackle damp crawlspaces, musty odors, and pollen in humid Burlington homes.
Learn moreLight Commercial HVAC
Rooftop units and split systems for small offices, shops, churches, and restaurants, serviced by the owner who answers the phone.
Learn more
Why Durham residents choose Littlejohn HVAC Solutions
Durham's historic neighborhoods punish a one-size-fits-all approach. These are the reasons homeowners from Ninth Street to Hope Valley call us.
Room-by-room airflow measurements
In a Trinity Park or Watts-Hillandale foursquare, upstairs heat usually traces to undersized knee-wall ducts and a single return. We measure static pressure and room airflow so you see the bottleneck before we propose a thing.
Ductless layouts that respect plaster
For Old West Durham mill houses near the former Erwin Mills, we plan mini-split heads and line-set paths around original walls and trim, and put the outdoor unit where a narrow side yard actually allows it.
Basement furnaces in Forest Hills and Hope Valley
Gas furnaces that have outlived two air conditioners get a real heat exchanger and venting inspection. When the end is near, we lay out another furnace versus a heat pump in writing, with free estimates and no pressure.
A year of HVAC in Durham
Spring
Old willow oaks and elms shed pollen and seeds onto condensers each April. Rinse the coil gently, swap filters often, and schedule a cooling check before summer, especially if a spring renovation stirred up plaster dust.
Summer
Old houses cool best with steady, long runs. Letting a bungalow heat up all day and then dropping the setpoint at five leaves the top floor behind until midnight. Hold a moderate setting and close west-facing shades.
Fall
Before the first cool night, have a basement gas furnace checked, including any venting shared with the water heater. Heat pump homes in south Durham need a defrost and strip heat test, and every system needs a fresh filter.
Winter
Durham winters are mostly mild, but balloon-framed houses feel every cold snap. Keep closets on exterior walls open so pipes and air stay warmer, and call if a basement furnace short-cycles or smells of exhaust.
Serving Durham from Burlington
Littlejohn HVAC Solutions, LLC is a service-area business based in Burlington, NC 27217. We come to you — about 35 to 40 minutes from our Burlington base.