Sealsixty Ltd

Reviews (209)

• 10

  Highly recommend this company

  Posted 2 days ago

  Very happy with the service received. On visiting my house to discuss and survey what would be required to help with condensation, I was advised to have trickle vents, and a fan installed in the bathroom. This worked really well and eliminated any damp patches on the ceilings. Later down the line I had new fascias put in by a different company, which must have dislodged the loft insulation, so Sealsixty came and surveyed again and recommended fitting eaves trays and repaired and tidied the loft mineral wool. Hopefully this will stop any more problems. Thank you, highly recommend.
  Verified reviewer
  Job location: PL25
• 10

  Very professional service

  Posted 03 December 2025

  Sealsixty did an excellent job of insulating our loft and installing a storage area above the insulation. They bagged and cleared all the old, filthy material and also lined the roof at a very competitive price. I have no hesitation in recommending them to prospective customers.
  
  Verified reviewer
  Job location: RH1
• 10

  Impressive service at a great price.

  Posted 03 December 2025

  Enquired on Friday, survey following Monday and cavity wall installation on Thursday of the same week. I don’t think that can be beaten. When you match that with reasonable cost and guarantees, I think that presents a magical formula. All this after struggling to find someone to do the job, accepting a quote from a competitor, eventually, only for it to be doubled by them. I wish I had found Sealsixty a long time ago.
  Verified reviewer
  Job location: PL25
• 10

  Great service, highly recommended

  Posted 01 November 2025

  We had been looking to get cavity wall insulation installed for some time but have struggled to find companies that install as most only undertook extractions. We wanted to get the work done before the weather changed and found Sealsixty on Checkatrade. The quote process was easy, their email communication was great, the works (extraction of old material and installation) were completed over 2 days and the installers were very professional. The difference in our home's warmth level was immediately noticeable. We don't need the heating on as long now and the heat is retained for far longer.
  Verified reviewer
  Job location: TQ5
• 10

  Very efficient

  Posted 27 October 2025

  Everything about the loft insulation was carried out efficiently. The installers turned up on time and their work was very well done and they cleaned up afterwards. All contact with Caroline in the office was very good ,emails answered quickly. I would definitely recommend.
  Job location: GU35
• 10

  Could not have asked for more. Excellent

  Posted 08 October 2025

  Sinan and the two Sam’s were brilliant. Fitted insulation and boarded the loft among vents to windows and roof. Great advice, even on problems that others will need to solve. On time, on budget, very professional, cleaned up well behind themselves, I even gave them a tip!
  Verified reviewer
  Job location: TR1