Get matched with top boiler installation pros in Lincoln, CA

"Great work, provided a good explanation of unit choices, competitive pricing, all installers friendly. Only hitch was thermostat installed in wrong place but no problem coming back out to move it to the agreed spot. Good cleanup."

"They installed a furnace and had to keep coming back to adjust it and even replaced a part. The warranty ran out a year later. But now, a year and a half later, they replaced it free of charge with a different brand."

"My water heater went out and needed a new one Ruben and Maurice came to my home And quoted me on my options I ended up going with a new style tankless water heater I can’t be happier with how it performs and the installation process Will definitely recommend this company to my friends and family"

"They had a good program for heating and A/C like for $100 they come out and check in the fall to make sure the heating is running right and again in the spring to make sure the A/C is working right. They did their job. It was cheaper than anyone else and I got 2 services. The only thing they could do better is give me free heating and air conditioning."

"A pureonics water conditioner was installed in February and about a month later we notices a leak.  it was repaired the day after we called."

"I have an old pressure relief valve replaced today. the service person was great, and the installation went really well. My main complain was the price after I did an online comparison. usually, the PRV installation will cost around $500 on the high end, but Bell Brother charged me $1600 since the new valve does not fit the old pipe, and they needed to redo the pipe. My family has been using bell brother for many years, we trusted their workmanship, but the markup is just too steep to justify. I definitely learned my lesson, for small jobs, will use home-advisor instead."

"Air conditioning in one zone stopped working over very hot weekend.  Called three companies to get a quote on possibly replacing both zones before I spent money on repairing a 17+ year old unit.
Diamond was the first company with availability.  Before they came over to give a quote, Bob called to ask me a few questions about the nature of the problem.  He speculated over the phone of what the problem might be and what the cost of fixing it would be.
He arrived for the appointment at the appointed time and proceeded immediately to fix the unit while talking to me about an estimate to replace both zones (2 systems).  He spent extra time hunting down an electrical connection issue in the unit and when done, checked out the flow readings of the system.
$258 dollars fixed the problem.  Since I had scheduled him for a quote, he offered to remove the new part that he had just installed or I could leave it in and if I decided to buy a new system, they would credit the repair of this unit back against it.  I elected to have him leave the fix in place.
Bob quoted me an exceptionally good price per unit for a quality Lennox system.  In fact a competitor who came the following day said that he wanted to see a copy of a written quote because Diamond's price was too good.
Although I've decided for the time being to not replace both systems, I would select Diamond Heating and Air in a second!
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"Outstanding! Bid process fully transparent, proposal guaranteed labor, materials and equipment for decades to lifetime. Installation team of Carlos and Roland outstanding. Carlos kept me informed throughout and got my input into key decisions. Nice people, hard working and honest."

"This was a two day job. The two men, Willie and Jose, who did the work were competent, courteous, and professional. They were responsive to our questions, did a good job of tidying up, and worked diligently. I think the work went very well. Installation was completed yesterday, and so far everything seems to be fine. Willie and Jose were knowledgeable about what had to be done and understood our concerns. We have no complaints at all, and would recommend them to friends and family who need HVAC work done."

"The fireplace installed was very nice and for the most part I was happy with the gas fireplace itself.  The down side of the installation was that finding a source for the electricity required for the firebox left me with two large holes drilled in my bedroom wall in order to reach the fire box to provide the electricity needed for its operation.  I ended up with two holes because the first attempt did not successfully reach the fireplace so another hole was drilled about 1 foot from that.  These holes are about 1" - 2" in size.  The need to drill was discussed prior to the installation and I understood the need to find an electrical source and I agreed with using my bedroom because the original proposed site was right next to the fireplace and would have looked unsightly when completed.  I must admit that I had no idea how unsightly these holes were going to look prior to giving the go ahead.  In retrospect I think they need to do a much better job on the electrical portion of the installation and include using both an electrician to properly wire the box for its electrical needs and a drywall person to repair any sheetrock damage done to complete the installation.  Their proposed use of a cable cover over these large holes doesn't properly address the problem and degrades their workmanship"