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BTU (Installation and Maintenance) Ltd logo, heating engineer in Guildford

BTU (Installation and Maintenance) Ltd

2.4(39)Guildford  •  RECC

Heating work

About

BTU (Installation and Maintenance) Ltd is a heating engineer based in Guildford, trading since 1963 and covering London. They carry out commercial work. Customers say their workers are helpful and polite, the service is good, the engineers are knowledgeable and their air conditioning work is reliable. They are listed with RECC as an installer.

Reviews

2.4

BTU (Installation and Maintenance) Ltd draws sharply mixed reports. Several reviewers describe long waits on the phone, missed appointments and calls that were never returned, and one reports being told the company no longer deals with domestic customers. Others report boiler problems after work by the company: one says a new boiler was installed dangerously and now needs replacing, one reports a gas leak and carbon monoxide poisoning after a repair, and others describe faults that took months to put right. A few reviewers praise the company, with one naming an engineer whose boiler installation work was described as excellent. One reviewer also describes an engineer behaving rudely when asked to wear shoe covers and leaving without doing the job.

TE
TeeeMar 2026 · Google

Experience verbal abuse from one of their driver driving past in Leytonstone green man interchange today. Don’t recommend this company.

FR
fahima R.Feb 2026 · Google

Not sure why my review was deleted. Been calling for 25 mins straight, line went from dialling out to now a repeated automated message claiming I’m at queue position 2. Which has been intermittently put on throughout the day. Still waiting for an engineer for the third day this week to fix the boiler and heating. That’s 3 days of annual leave gone. I’ll be expecting compensation. And I’ll continue ringing till the call is answered and an engineer is at the property.

RL
robert L.Jan 2026 · Google

Damage to property and damage to kitchen goods. After fitting a new gas boiler. Last week. Been trying to get a answer on the phone for over an hour and 20min. One star to good.

UL
Una L.Jan 2026 · Google

After BTU 'serviced' my boiler, the heating stayed on warm 24/7 and the hot water was only warm. It took months to get them to fix it, in this freezing winter. They didnt turn up for one appt, no call or apologies. They never return calls or messages. Engineer left a mess for me to clean up. Avoid.

DR
Darrin R.Jan 2026 · Google

Great company

Area

Guildford, GU1

Opening times

  • MondayOpen 24 hours
  • TuesdayOpen 24 hours
  • WednesdayOpen 24 hours
  • ThursdayOpen 24 hours
  • FridayOpen 24 hours
  • SaturdayOpen 24 hours
  • SundayOpen 24 hours

Additional information

  • MCS NIC-200327
  • RECC
  • Commercial work
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