Still waiting on post certification for both cavity wall and floor insulation. Tried to call the main phone number at 4pm but said offices were closed. Tried emailing but no response.
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
See what reviewers are saying
Arash the engineer was bang on time having driven from Glasgow. He we a very personable guy and despite having difficulty with his mobile phone reception managed to complete his service of our system.... See more
Can't fault the work or the workers they arrived early worked around each other and got the whole solar panel/air source heat pump / hot water tank /plumbing / electrical all done in just over a day... See more
Energy Pig 110% 🐖 Had oil heating they installed ASHP new radiators throughout and solar panels. Very quick and no hassle from the tradesmen. 2 and a half days for completion no disruption from... See more
Company details
- Insulation Contractor
- Gas Installation Service
- Heating Contractor
- Boiler and Heating Service
- Solar Energy Company
Written by the company
Energy Pig is a multi-award winning heating & insulation company and our head office is based in Glasgow & we have hundreds of 5 star customer reviews across many platforms. We have access to the government portal and can offer funding and cash back towards most Energy Efficient Home Improvements. We can also offer monthly repayments to help spread the cost for all Home Improvements Accredited / Approved Members • CIGA • KIWA • TRUSTMARK • NIA - National Insulation Association • Buy With Confidence • Quality Mark Protection • GDGC • RECC • Gas Safe • FCA - Financial Conduct Authority • British Assessment Bureau • Elmhurst • MCS Insulation Services • Cavity Wall Insulation • Party Wall Insulation • Loft / Rafter Insulation • Underfloor Insulation • Room In Roof Insulation • Solid Wall Insulation Domestic Heating Services • Gas Boiler Replacement • LPG Boiler Replacement • Electric Storage Heaters • Full Central Heating • Smart Heating Controls • Landlord Gas Safety Certificates • Boiler Service & Repair • Boiler Homecare Plans Renewable Services • Air Source Heat Pumps • Solar PV • Glasgow Heating & Insulation • Edinburgh Heating & Insulation • South Lanarkshire Heating & Insulation • North Lanarkshire Heating & Insulation • East Renfrewshire Heating & Insulation • Renfrewshire Heating & Insulation • Inverclyde Heating & Insulation • East Dunbartonshire Heating & Insulation • West Dunbartonshire Heating & Insulation • Falkirk Heating & Insulation • Stirling Heating & Insulation • West Lothian Heating & Insulation • East Lothian Heating & Insulation • Fife Heating & Insulation • Dumfries & Galloway Heating & Insulation • Perth & Kinross Heating & Insulation • Dundee & Angus Heating & Insulation • Argyll & Bute Heating & Insulation
Contact info
120 Woodneuk Road, G53 7QS, Glasgow, United Kingdom
- 0800 955 1201
- eco@energypig.co.uk
- www.energypig.co.uk
No recent history of asking for reviews
This company hasn't invited customers recently, so reviews may not be representative
Replied to 75% of negative reviews
Typically replies within 1 month
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Customer Service Nightmare
Personally I am appalled at the lack of customer service & attitude towards customers from a ECO government granted company as well ranked as Energy Pig,
My elderly parents had applied to upgrade their heating back in July last year, after giving copies of personal documents it went silent from Energy Pig regarding the application until the end of October when they started receiving calls demanding more documents. The attitude and tone from these calls from Carole at Energy Pig was deeply disappointing.
Due to the constant harassment & lack of customer service or information provided to my parents we have cancelled their application for the upgrade.
I will not be recommending this company in the future as there seems to be a lack of training in the basic knowledge of customer service & manners.

Reply from Energy Pig Heating & Insulation Funding
Home Energy surveyEnergy
Gary Low came to do a survey. Introduced himself,explained what he was going to do. Friendly,down to earth guy
Home energy survey Garry Low who is the surveyor when he…
Garry Low who is the surveyor when he arrived introduced himself and explained what he was here for, very polite when asking questions and explaining what might happen if the work would be carried out.
Five Star experience from David H
We arranged for Energy Pig to come to our property this morning to assess our home for insulation as part of the Government's scheme. We had a lovely and very professional guy called David H visit our home. Not only did he have a 2.5 hour trip to get to us, he was on time!! From the moment he stepped through our door, we felt extremely assured that David was super experienced. His knowledge and professionalism was so obvious from the outset. Furthermore, he was so polite, genuine, helpful, and explained everything so well. We wouldn't hesitate to recommend Energy Pig. Thank you David H
Gary Low came out to do a survey on my…
Gary Low came out to do a survey on my property. He did a complete survey from top to bottom and was very thorough. He kept me informed at every stage of what he was doing and why. He was very polite and respectful of my home, as well as very professional. He showed me all of the drawings and confirmed details with me, so I felt very informed about what was happening. He was also very patient and friendly with 3 small children and a dog running around!
Josh and the team were brilliant
Josh and the team were brilliant, the work carried out was explained in detail before hand and couldn’t be happier with the finished product.
Over and above helped out by also doing extra work as old pipes were damaged. Josh also made it clear he was there to help out with any questions I’d have in the future.
Would definitely recommend energy pig to anyone.
Heat pump survey
Gary Low and jim visited to survey my home for heat pump, I was unable to proceed because of limitation of where boiler could go. However they were very pleasant and efficient giving me possibilities. Before they left Gary also gave me some helpful advice to make home as a warm as possible
Energy Pig - Exceptional company to work with.
Josh and his team who came to fit the heat pump, radiators and solar panels were a fantastic, knowledgeable and efficient team.
The standard of the work completed by the team was exceptional, considering the substandard flooring materials left by previous builders had made their job more difficult. Not only did they replace some of the flooring but made repairs to some areas.
Josh fully explained how the system works as well as good advice on servicing and aftercare.
The customer service we received from Energy pig has been exceptional and are always on hand and willing to take the time to answer your questions.
I would highly recommend Energy Pig to anyone who is deciding which company to install their heat pump and solar panels.
J F Wood
Energy Pig 110% 🐖 Go for it!! 🐷
Energy Pig 110% 🐖
Had oil heating they installed ASHP new radiators throughout and solar panels.
Very quick and no hassle from the tradesmen. 2 and a half days for completion no disruption from start to finish excellent would recommend this company if you are thinking about changing your heat source/insulation.
Glad went ahead with the project.
Once again many thanks to everybody involved can't appreciate your help etc.
Thanks Energy Pig 👌👌👌❤️🐷🐖
Air source heatingsystem fitted for free
They approached me direct at the doorstep. The deal they offered was unmissable as my oil heating had failed terminally. Took 5 months to complete surveys and paperwork docs etc. Instinct and their helpfulness kept my patience. System fitted in time for christmas and it works perfectly. Efficient, friendly and low disruption.
Had my survey carried out by Gary today…
Had my survey carried out by Gary today within a day of enquiring about new heating. Gary was amazing from start to finish. Explained everything step by step of what he needed to carry out in the house. Answered all my questions I had. Gary makes you feel as ease straight away. Very friendly and you can tell he truly cares about his customers. Absolute star. Cannot wait for my heating to be installed now it will make such a difference to the house.
I had a survey carried out by Gary…
I had a survey carried out by Gary today. He was very efficient, thorough, professional, helpful and explained everything to me clearly.
Air source heating
I got airsource heating installed by energy pig at the start of the year. It was installed within a day and all carpets put back in place. All the workmen were really friendly and above all it has greatly enhanced the heat in my home and significantly reduced my energy bill.
Great customer care.
I had a survey carried out today by surveyor Gary and heating engineers Jim and David. They put me at ease and went about their work professionally and efficiently and answered my questions knowledgeably and politely. Couldn’t fault their customer care.
Fantastic workmanship from start to finish…
Fantastic workmanship from start to finish under sometimes difficult conditions. Always polite and helpful. Everything explained in great detail at completion of the job. Thanks for everything guys. We would certainly recommend you to anyone considering installing an air source heat pump and solar panels.
Fantastic experience
Fantastic experience, fully managed by Neil Thompson who made the insulation and EPC upgrade of my rented place a breeze. Always kept me updated and dealt with all the paper work with the council. Couldnt recommend them enough and will use their services again if my flats qualify!
Waste of my time
Had them round in April to look at getting loft and solid wall insulation. The survey took a lot longer than I expected, the surveyor was on site for almost 4 hours. This was difficult with working from home as he had a lot of questions and needed me to follow him around most the time. He then had to come back round a week later for an hour, again requiring more of my time.
Was told we would hear from the office with costs/next steps but never heard anything.
I contacted them via email in July, asking for an update and to point out we just wanted the loft insulation only (so should an easy job) to which I got a quick response saying they would look into it. 11 days past, nothing from them so I email again. Get a response saying David is on holiday but this would be prioritised when he got back. 10 days past, still nothing so emailed again but ignored now.
If you don't want the job, say so.

Reply from Energy Pig Heating & Insulation Funding
Gas boiler upgrade
From the outset, David and Lizzie were excellent in advising and organising the installation of a new boiler and gas supply upgrade. The installation guys, Rob, Josh, Kenny and Bob and the electrician were great completing a very difficult gas upgrade and boiler instal. They worked tirelessly and to a very high standard. Would definitely recommend Energy Pig to anyone.
I would recommend Energy pig all day…
I would recommend Energy pig all day long. The guys worked their buts off done a great job and left the place spotless. I'm very happy
Cavity Wall Insulation
A big thanks to Neil, Lizzie and colleagues for arranging and installing my cavity wall insulation recently, my house so much warmer, would recommend Energy Pig to anyone requiring home insulation 👍
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.







