NH  #4062
MA  # 13471
Master License
Fast reliable service
(978) 556-5617
(781) 581-0700
NH  #4062
MA  # 13471
Master License
Fast reliable service
(978) 556-5617
(781) 581-0700
Heating / Boilers / Furnaces / AC Units
Let us find a solution for your heating needs, from boiler installations to radiant floors,
we will find a way to bring the warmth and comfort into your home.
Ask about our multiple job discounts.
Please call to verify price validity.  PHD reserves the right to change pricing/rates at our discretion.

PLUMBING . HEATING . DRAIN CLEANING

Brochures, Information & Manuals
Amana Furnace
Burnham Boilers
Daikin Ductless Mini-Split
Goodman Furnaces
Heat Transfer Products
Lochinvar Boilers
Mitsubishi Ductless Mini-Split
Modine Heaters
Navien Wall Boilers
Rinnai Tankless & Boilers
TFI Water Heaters
Weil McLain Heating
York Furnaces & Air Conditioners
phdplumbing@comcast.net
(978) 556-5617 or (781) 581-0700
(updated 11/14/2024)
Heating & Air Conditioning Labor Rates

• Air Conditioning (minor) Service - Check air handler ; Flush condensate pump & lines ; Change filter. = $350.00
• Air Conditioning (major) Service - Check air handler ; Flush condensate pump & lines ; Change filter ; Clean         evaporator coil ; Clean condenser coil ; Check Freon level. = $475.00
• Antifreeze pumped into boiler and baseboards (up to 3 zones) = $450.00 per system
• Assess heating / AC problem = $300.00
• Baseboard leak repair = $450.00 (includes draining and purging system)
• Boiler installation. = Call for Pricing (many variables)
• Boiler Service 1 - Cleaning of Boiler/Furnace = $350.00
• Boiler Service 2 - Maintenance (required every 12-15 years on all heating boilers) - Drain boiler and replace T&P valve ; Thermal expansion tank ; Pressure regulator ; Back-flow prevention device ; Install new circulator pumps. Purge and test heating system. = $500.00 (up to two pumps) or $600.00 (three and four pump systems)
• Fireplace installation = call for price
• Frozen pipe thawing = $750.00 (first 3hours)
• Furnace installation. = Call for Pricing (many variables)
• Gas valve replacement (Boiler, Water Heater, Fireplace, etc) = $350.00
• Mini-Split / Heat Pump installation. = Call for Pricing (many variables)
• Purge heating zones (up to 3 zones) = $400.00 per system
• Thermocouple or thermopile replacement. = $300.00
Air Conditioning FAQ's (Frequently Asked Questions)

Q) AC Service Maintenance :-
How often should I have my equipment serviced ?
A) Central air furnace filters need replacing as often as twice per year and more often if there are many shedding pets in the home. Furnace evap coils and outdoor air conditioning condensers should be washed down every three to four years depending on the pollen and dust in your area. Condensation lines and pumps should be flushed during the cleaning of furnace evap coils.  Ductless Mini-Split units need similar service with the exception of the indoor wall units which should be serviced every year.

Q) Adding AC :-
Is it possible to add AC (cool air) to my central heating furnace ?
A) Yes most furnaces can be retro-fitted with air conditioning. Have your HVAC specialist assess the system first as many older furnaces may need additional electronic components.

Q) Adding AC to a Central Heating System :-
Is it possible to add AC (cool air) to my central heating furnace ?
A) Yes most furnaces can be retro-fitted with air conditioning. Have your HVAC specialist assess the system first as many older furnaces may need additional electronic components.


Heating FAQ's (Frequently Asked Questions)

Q) Frozen baseboard :-
I have a section of baseboard in a four season porch which freezes up occasionally. How do I prevent this from happening ?
A) The first and most cost efficient way of keeping any part of your heating system from freezing would be to pump antifreeze (non toxic solution) into the heating system. With the exception of systems containing Aluminum, CPVC and Galvanized Steel.  Most antifreeze solutions will even protect the metals  in your heating system against corrosion and lubricate moving parts. Antifreeze solution should last up to 6-7 years depending on the size of your heating system, and should be checked every two to three years for high acidity (pH) levels. Whether you have freeze-up problems or a fully functional heating system that has never frozen up, I would recommend anti-freeze to all homeowners with radiant (hot water) heating systems.  Since mechanical items such as circulators, gas valves, etc break down at the most inopportune times, anti-freeze is your insurance policy against high repair costs of burst, frozen piping & boilers.
The second  solution to your problem is to create a seperate zone just for that four season room, by adding a switching relay to your boiler and rerouting the piping going to and coming from the radiators. This room can now be controlled by its own thermostat. Other solutions would include installing a jog/exercise relay on the heating loop to periodically keep water moving through the heating lines.

Q) Furnace / Boiler maintenance :-
How often should I have my boiler / furnace cleaned ?
A) Gas fired furnaces & boilers should be serviced and cleaned every four to five years and oil fired boilers should be serviced and cleaned every second year. All boilers should have mechanical parts such as pressure regulator, backflow-preventor, pressure relief valve, and expansion tank replaced every ten to twelve years.
Furnaces and air handlers with evaporator coils should be cleaned and washed down every three to five years, same goes for the outdoor condenser. Evaporator coils and condensers get plugged-up with pollen and small particles of dust, which reduce the efficiency and effective transfer of hot or cool air.


Q) Heat Pumps :-
Will a heat pump work in New England winters ?
A) Heat pump technology has come a long way. Many mini-split systems will now operate effectively under harsh winter conditions (3F-20F) whereas a whole house split systems may not be as effective. Many variables should be considered before deciding to install a 100% heat pump system over a hybrid energy system such as a gas/electric system where the heat pump would be used for a short period before freezing temperatures arrive and switch over to the gas or electric coil portion during freezing temperatures.

Q) Incentive Programs :-
I'm thinking of replacing my old heating system, will I qualify for rebates or incentives when I install new equipment ?
A) Utility companies change, incentive / rebate programs frequently. Most providers will incentivize high efficient heating, hot water and A.C equipment. Please call your provider for more information or if located in Massachusetts, contact Mass Save.

Q) Leaking pipe :- Why is the pipe attached to my boiler leaking ?
A) The pipe you are referring to is most likely attached to the pressure relief valve, and is leaking because it has reached it's blow-off  point (pressure over 30psi). This is a safety device which is designed to keep the boiler from reaching pressures above 30psi. High pressure combined with high temperatures will result in an explosion, at this point I recommend shutting off the water & power to your boiler and giving us a call.

Q) Oil to Gas Conversion :- How difficult would it be to convert my heating furnace from oil to gas and what are the benefits ?
A) Gas piping to the property is the first step in the conversion process. Either installed by the local utility company or licensed installer. This requires digging up a section of the street or sidewalk in front of the property and running a pipe to the property. In most cases this can be avoided if choosing propane gas, which would require gas tanks installed on the property, providing more flexibility with scheduled installation and better negotiating power with fuel cost.
Second step to the conversion would be deciding whether the appliance (boiler / furnace) would needs replacing. Conversion burners can be added to existing appliances without replacing the entire appliance, however in most cases, this option is not efficient enough to justify the conversion cost. Replacing the existing 80% efficient oil appliance with a high efficient (96%) gas furnace is a net benefit of 16% on your fuel bill. The other benefits would include the elimination of oil soot in the home, the elimination of needing a drafty chimney, and removing the need for make-up air depletion from inside the building.

Q) Radiant heat :-
I want to install radiant heat in my basement. Is this possible without having to rip-up the concrete floor ?
A) Any installation of radiant flooring which keeps the tubing off the concrete is recommended and preferred. Some of our best installations of radiant heat have been done in basements, using a floating floor system which acts as both a vapor barrier and an insulator, we install a slotted radiant track which provides even heat to the entire area. Below are some pictures of a section of radiant flooring in which antifreeze was needed (note the red color in the tubing) for a separate section of the heating system which was exposed to the elements on a four season deck.