Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Fast, Reliable Heat Pump Installation Across Andover
Heat pump installation in Andover typically runs $3,500 to $7,500 for a complete system, and most projects are scheduled within one to two weeks after we complete a room-by-room load calculation. We serve every neighborhood in Andover, from the 1800s-era colonials near downtown to the newer subdivisions off Dascomb Road, and we answer calls 24/7 with a live person, not a voicemail queue. If you’re weighing repair versus replacement or just want a straight answer on what a new system should cost here, our AC Repair in Andover team can help you decide, or call (361) 306-9515 and we’ll put numbers in writing before any work starts.
Why Dalton Heating & Air Is Andover’s Preferred Heat Pump Installation Company
Andover homeowners call us because we show up inside the window, put the price in writing before touching a screwdriver, and back every installation with a written guarantee for a full year. That’s not a marketing line. It’s The Garrison Standard, and we’ve held to it since 2003.
Our technicians live and work in this part of the Merrimack Valley. They know the difference between wiring a tight 2005 colonial near Wood Hill and retrofitting an 1890s Victorian off Main Street where the only chases are knee-deep in old plaster. We don’t send a different crew every time and we don’t spin a price at the door. Marco Benitez runs our team, and he holds every tech to The Garrison Code: arrive on time, quote in writing, do the job by the book, leave the site clean, and stand behind the work for a year.
When a Andover homeowner calls at 2 a.m. because the heat pump quit during a January cold snap, our dispatch picks up. We coordinate from our Boston office, but crews serving Andover are local and can usually reach any address in town within about an hour for no-heat or no-cooling calls.
Mini Split Installation in Andover
Mini split installation in Andover is often the best fit for older homes that were never ducted for central air, especially the downtown colonials and Victorians where running ductwork would mean tearing into plaster ceilings and 200-year-old trim. These systems let us condition individual rooms or zones with a small outdoor condenser and slim indoor heads mounted high on the wall, connected by a line set that runs through a three-inch chase rather than full ductwork. In Andover, where housing stock varies this much from street to street, the Heat Pump Installation team recommends mini splits for finished attics, three-season porches, and add-on rooms that never seem to get comfortable.
Cost for mini split work in Andover falls inside the same $3,500 to $7,500 range as a full heat pump install, depending on how many indoor heads you need and whether the home needs electrical panel upgrades. A single-zone system on the low end of that range handles one large room or an open kitchen-and-living area. Multi-zone systems with three or four heads run toward the upper end.
Sizing on Older Andover Homes
The mistake we see most on mini split jobs in Andover is treating them as add-on space heaters rather than sized systems. A north-facing sunroom off a 1910s colonial loses heat on all four sides, and a one-ton head will short-cycle and eat electricity while the room still feels cold. We run a Manual J for the specific room, not the whole house, and size the head to match that room’s actual load. That matters more in Andover than in a uniform suburban subdivision, because the oldest homes here were never insulated to a modern standard.
Electrical Panel Requirements
Many Andover homes built before 1980 still run 100-amp panels, which may not have capacity for a multi-zone mini split. We check the panel during the estimate, and if an upgrade is needed, the price for that work goes into the written quote ahead of time, not as a surprise line item after the fact. No homeowner should find out mid-install that the panel can’t carry the load.
Heat Pump Maintenance in Andover
Heat pump maintenance in Andover runs $80 to $200 depending on the depth of the service, and it’s the single best way to keep a heat pump from turning into a January emergency. A system that runs year-round needs attention twice a year, once before heating season and once before cooling season. We inspect the outdoor coil, check refrigerant pressures, test the reversing valve, tighten electrical connections, and measure the temperature split so we catch small problems before they take out a compressor.
For Andover homeowners, the stakes are higher than in milder parts of the state. When nighttime lows sit near zero for a week straight, a heat pump with a dirty outdoor coil or a refrigerant charge that’s drifted a few ounces low has to work far harder to reach setpoint. That shows up on your electric bill even when the house stays comfortable.
What a Tune-Up Actually Covers
We check refrigerant levels with a manifold gauge and add a charge if your system is low, but we don’t just top it off and walk away. If there’s a slow leak at a flare fitting or Schrader valve, we find it and repair it, because refrigerant trickling out over a season is how compressors and condenser coils die early. We also verify the defrost cycle on the outdoor unit. In Andover winters, frost buildup that doesn’t clear is a common cause of no-heat calls in older systems.
Maintenance Predictability
A heat pump that gets annual maintenance rarely fails dramatically. Most no-heat emergencies we see in Andover involve systems that haven’t been touched in five or more years. The $80 to $200 annual visit is cheap insurance compared to the $150 to $650 an emergency repair would run, and we put the maintenance report in writing so you know exactly what was checked and what the tech found. Our technicians are not paid commission on what they sell, so the report reflects what’s actually there.
Trusted Brands We Service in Andover
We’re factory-trained on Trane, Lennox, Goodman, and Rheem heat pumps, along with five other major residential brands. That means we stock common parts for these systems on our trucks, so a repair or installation at your Andover home doesn’t stall out for a week while a part ships from a warehouse. We don’t push one brand over another. The right heat pump for an Andover colonial is whichever one matches the load calculation, not whichever one earns the biggest margin. We’ll quote the system that fits the house and your budget, and we’ll explain why in plain terms.
Common Heat Pump Installation Problems We See in Andover Homes
Every town has its own pattern of heat pump failures, and Andover’s comes down to housing stock and how the systems were installed in the first place. Here’s what we see most often on service calls and install estimates.
- Right-sized outdoor unit, wrong-sized ductwork. A heat pump is only as good as the ducts it’s pushing air through. In older Andover homes, we routinely find undersized or unsealed ducts in unconditioned attics and kneewall chases, which drops effective efficiency far below the nameplate SEER2. The unit looks right on paper and performs like a mediocre system in real life.
- Inadequate condensate drainage. Heat pumps produce water in both heating and cooling modes. When an indoor unit is installed in a finished basement or attic with no proper drain path, water leaks out and damages drywall or floors. We see this often in Andover homes where DIY or handyman installs didn’t account for where the condensate would actually go.
- Refrigerant charge drift from slow flare leaks. A heat pump that’s eight or nine years old may have lost several ounces of refrigerant through a flare fitting or Schrader valve, and the homeowner won’t notice until heating performance drops in December or January. By then, the system is working harder and drawing more current every cycle. Left alone, that drift eventually takes the compressor with it.
- Heat strips running constantly because the unit was sized off square footage. In older Andover colonials with minimally insulated walls, a heat pump that was matched to the old furnace’s tonnage rather than run through a Manual J will cycle into auxiliary heat far more than it should. That’s not a system failing. It’s a system that was never sized right in the first place. It shows up on the January electric bill as a surprise.
Pricing for Heat Pump Installation in Andover, MA
A complete heat pump installation in Andover runs $3,500 to $7,500. That includes the outdoor condenser, indoor air handler or coil, new line set, electrical connections, thermostat wiring, permit filing, and full system commissioning. Multi-zone mini split systems run toward the upper end of that range because each indoor head is a separate piece of equipment with its own line set and electrical run.
What moves the price inside that range is the size of the system, not the brand name. A 2-ton unit for a well-sealed 1,200-square-foot rancher costs less than a 4-ton system for a drafty 3,000-square-foot colonial. Ductwork modifications, electrical panel upgrades, and new drain lines add cost and go into the written quote before work starts. No price changes at the door. Ever. That’s The Garrison Standard.
For an exact quote at your Andover home, call (361) 306-9515. The estimate is free, it takes about 45 minutes, and you get the number in writing before we leave.
We Also Serve Cities Near Andover
Our Andover crews also cover the surrounding Merrimack Valley. If you’re in Lawrence, Wilmington, Lowell, or Reading and need heat pump installation, we’ll bring the same written pricing and one-year installation guarantee to your door. Same phone number, same standard.
Serving Andover, MA - Our Local Coverage Area
We’re based in the Andover area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Heat Pump Installation in Andover
Yes, you need a load calculation. Matching the old unit’s tonnage is how Andover homeowners end up with a heat pump that runs perfectly fine until the first 15-degree morning, then can’t reach setpoint and cycles into expensive auxiliary heat strips all winter. We run a room-by-room Manual J on every install because Andover’s housing stock is far too varied for square footage to be a reliable stand-in for load. A 2.5-ton system that suffices for a tight 2000s rancher off Dascomb Road may be wildly undersized for an uninsulated 1890s colonial near downtown. The load calculation tells us what your house actually needs. Call (361) 306-9515 for a free estimate, and we’ll walk you through the numbers.
If the unit is under 12 years old and the repair is $300 or less, repair it. If the compressor or condenser coil has failed, or the system leaks refrigerant and the nearest leak is inside the indoor coil, replacement is usually the better money in Andover, because repair costs on those components typically exceed half the price of a new system. You should also factor in that heat pumps provide both heating and cooling. In Andover’s climate, where winter nights routinely drop into the teens, a modern heat pump often cuts your annual heating cost compared to oil, propane, or electric baseboard, even if the AC side still worked fine. We’ll tell you honestly which way to go. That’s what the Heat Pump Installation team is for. Call (361) 306-9515 and we’ll put the repair and replacement numbers side by side in writing.
SEER2 measures cooling efficiency. A higher number means lower cooling costs in summer. What it won’t tell you is how the system performs in January, which matters more in Andover than it does in Phoenix. For heating performance, look at HSPF2. A heat pump with an HSPF2 of 9 or above is considered efficient in heating mode, and that’s the number that moves your NStar bill during the months when your outdoor unit is pulling heat out of 10-degree air. One thing SEER2 definitely can’t do is overcome leaky ductwork or a wrong-sized system. A 17 SEER2 unit connected to badly sealed ducts will underperform a properly installed 15 SEER2 system every time. The installation quality determines whether you actually see the rated efficiency on your bill. We test static pressure and seal ducts as part of the install.
If your heat pump can’t get the house above 62 degrees while outdoor temperatures are in the teens or single digits, that’s an emergency in Andover. Homes here can freeze pipes in a matter of hours when a heating system fails in that weather. There’s a difference between “the system is running but the house feels cold” and “the system is running constantly and blowing lukewarm air.” The first usually means the unit was undersized or the auxiliary heat is not engaging properly. The second often means a refrigerant leak, a failed reversing valve, or a defrost board problem. All three are fixable, and we answer calls 24/7 at (361) 306-9515. If you’re in Andover and the house is dropping below 60, call now. We’ll send a technician.
Twice a year, once in early spring before cooling season and once in early fall before heating season. The visit runs $80 to $200 and includes checking refrigerant charge, testing the reversing valve, verifying the defrost cycle, inspecting and tightening electrical connections, measuring the temperature split, and cleaning the outdoor coil if it’s blocked. In Andover, fall maintenance matters more than spring, because the system’s hardest work happens when January temperatures bottom out. A heat pump that enters winter with a dirty coil or a low refrigerant charge will struggle through every cold snap and cost you more each month on the electric bill. We document everything in a written report and never push parts you don’t need.
Need heat pump installation in Andover? Call (361) 306-9515 for a free, no-pressure estimate. We’ll calculate the right size for your house, quote the price in writing before any work starts, and stand behind the installation for a full year.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Andover and the Merrimack Valley since 2003.







Before
After
Before
After
Before
After