Most reviews highlight on-site engineers who arrive on time, work neatly, and come across as personable. Customers often mention clear contact before arrival and an easy online booking process. A smaller group describes recurring faults, unresolved damage, and slow or limited aftercare responses. Ratings are mostly high, with a noticeable minority of low scores tied to service and quality problems.
Examples from available reviews (Dec 2021 – Feb 2026).
First-rate installation; Gareth and Josh installed boiler quickly and left kitchen spotless.
“left my kitchen spick and span.”
Engineer spent long time, left heating off and failed to respond about damage.
“also not replying to emails regarding damage to my worktops.”
Tenant's new installation has had repeated issues.
“Repeated issues with tenant's new installation”
Easy booking, quick appointment, pre-call with photos, and efficient engineer.
“Pre-call after photos to warn me of any installation issues”
Many customers say installers turn up promptly, act friendly, and leave the area clean. Several mention quick installs and next-day bookings. A minority report long visits, heating left off after the work, or issues that were not fixed after the appointment.
Some reviews point to competitive pricing, and one customer mentioned a product swap that lowered the cost. Fewer reviews talk about value than about service and communication. The sample shows no widespread complaints about pricing.
Reviewers often describe the online choice process as easy, with straightforward scheduling and useful pre-visit checks. People also mention advance notices and pre-calls with photos as helpful during booking. A few customers report limits on scheduling, such as being refused a morning appointment.
Several reviews describe careful, thorough work and appliances that run reliably. A small number report repeated faults after installation, including at least one failed replacement. Quality issues appear less often than praise for service and communication, but they still show up.
Many reviewers mention clear emails, texts, and calls before arrival, with time windows and explanations of the work. Engineers are often described as talking through concerns or showing how a fix works. Missed replies about post-install damage come up rarely but appear in more than one negative review.
Most reviews describe installations completed as expected, systems working, and tidy finishes. A clear minority report unresolved damage, recurring faults, or weak aftercare, creating a split between high-scoring visits and lower-scoring follow-up experiences.
For each review, the core experience based on original source reviews.
Sources: External Source (20) · Trustpilot (20) · Collected.reviews (1) · Quotes shortened · As of: February 2026
Easy booking with pre-arrival update; engineer polite and efficient.
“Was updated the day before with an estimated time slot.”
Reviewer wrote a single positive word: 'Excellently'.
“Excellently”
Tenant's new installation has had repeated issues.
“Repeated issues with tenant's new installation”
Engineer was friendly and tidy, but morning appointment request was denied.
“Disappointed they could not accommodate my request for a.m appointment.”
Boxt corrected wrong order, fitted boiler, and resolved a minor fault quickly.
“they swapped it to one that was correct (and £100 cheaper)!”
As always, service was great and engineer was friendly and professional.
“As always great service friendly and professional engineer”
Engineer spent long time, left heating off and failed to respond about damage.
“also not replying to emails regarding damage to my worktops.”
First-rate installation; Gareth and Josh installed boiler quickly and left kitchen spotless.
“left my kitchen spick and span.”
Annual service carried out by Steve, who was friendly and explained everything.
“was friendly, easy to talk to and explained everything he was doing.”
From selection to installation, Boxt provided fantastic service; Grant was delightful.
“Great customer service, Grant the engineer was a delight to have.”
Clear timing communication, friendly efficient engineer, and tidy finish.
“Good communication about the timing of service appointment”
Great service with good communication, punctual and no mess.
“Great service good communication arrived on time no hassle no mess 5 star”
Engineer was on time, polite and respectful.
“On time, polite and respectful all good with boxt service.”
A missed Co2 detector was corrected during a prompt follow-up appointment.
“They came back and put that right”
Heating failed after visit; engineer guided customer via video call to open valve.
“I did not expect to complete the service myself.”
Next-day installation arrived on time; work was clean, friendly and professional.
“Able to schedule a next-day boiler installation”
Reviewer wrote: 'Punctual and very pilot'.
“Punctual and very pilot.”
They fulfilled commitments, kept customer updated and were highly competent.
“Did everything they said they would do.”
Punctual service with clear explanations and resolved concerns.
“explained any concerns or issues I had with the boiler”
Easy booking, quick appointment, pre-call with photos, and efficient engineer.
“Pre-call after photos to warn me of any installation issues”
Engineer was punctual, helpful and very pleasant.
“The gentleman was very nice.”
Flawless experience; Robert completed the job and everything works.
“everything is up and running perfectly”
Engineer replaced a failed Nest with excellent communication and perfect work.
“excellent communication before, during and after his visit”
Easy online selection and convenient installation; engineers were tidy and efficient.
“The whole online selection process was very easy”
Reviewer had a very good experience.
“It was a very good experience”
New boiler fitting was easy to understand and very well done.
“the whole process was easy to understand and set up.”
Installation was fast, efficient, tidy, and highly recommended.
“Fast efficient and tidy install.”
Efficient ordering, clear pre-arrival communications and polite professional fitters.
“Then received email & text the day before fitting with approximate arrival time.”
Engineers were punctual, polite, efficient and left a tidy job.
“Punctual, polite, efficient, friendly engineers.”
Installation team were friendly, professional, and worked cleanly.
“The work force were extremely friendly and professional.”
Service engineer was personable, professional and went above and beyond.
“Your service engineer went above and beyond”
Office were prompt and fitter explained work, was clean and tidy.
“talking me through each aspect of the job”
Alex communicated well, arrived on time and completed work cleanly.
“Great communication from Alex.”
Engineer was friendly and very helpful.
“Friendly and very helpful engineer”
Ordered online and engineer arrived promptly; friendly and helpful.
“Friendly, professional and extremely helpful.”
Straightforward process with helpful follow-up calls and prompt efficient fitter.
“Darren our Fitter called to confirm the evening before and arrived promptly”
Customer service provided regular contact from quote to post-install confirmation.
“Customer Service is outstanding.”
Installer was pleasant, worked well and left the place spotless.
“Left place spotless when finished”
Great job at a fantastic price and left spotlessly clean.
“Fantastic job , fantastic price .”
Engineers dealt with issues methodically and completed thorough work.
“all work was methodical and thorough.”
This page combines submitted experiences with public reviews from platforms such as Google, Trustpilot, etc. Recurring points are summarised without changing the content of reviews.
Boxt works in the UK home heating and installation market. It supplies and installs domestic heating systems and smart heating controls. Boxt also books scheduled installations, routine servicing, and repair visits handled by qualified engineers. Customers use online tools to get quotes and book appointments.