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Avant Garde Damp Solutions Ltd

9.85/10

Isleworth, Middlesex

Checkatrade member since March 2008
15

Services

  • Dry Rot Treatment
  • Woodworm Treatment
  • Structural Water Proofing
  • Damp Investigation
  • Damp Survey
  • Timber Treatment
  • Rising Damp
  • Penetrating Damp Treatment
  • Emergency Damp Proofing Service
  • Mould Control

Customer Reviews

Write a review

9.85 /10

Based on 11 reviews over the past 12 months

Quality of work

9.64

Reliability

9.91

Communication

10

Reviews (280)

  • James S
    9

    Excellent Work Professionally Carried Out.

    Posted 25 February

    We required exterior and interior damp proofing, plus some interior plastering in our old house. Avant Garde Damp Solutions provided a breakdown of the overall cost, and we had to pay a 30% commission fee on the invoice. That done, Avant Garde carried out the work a day past the agreed start date due to other commitments, but completed it more quickly than we expected. We felt they'd saved a corner of our house from rotting, which is obviously a win for us. I would certainly use them again.
    Job location: HP7
  • 10

    Clear and thorough survey

    Posted 15 February

    We only did a survey so far but that is impressively clear and comprehensive. I like that as well as giving solutions and costs for immediate issues, it also offers suggestions longer term fixes, and gives advice on how to avoid things like condensation. No one else I spoke to did that. Other companies gave a quote for the current problem and that was it. Avant Garde gave suggestions for how to avoid problems in the future as well. When I spoke to Ben on the phone he was friendly and clear and happy to explain things. Highly recommended.
    Verified reviewer
    Job location: EN2
  • 10

    Great Service - Highly Recommend

    Posted 09 December 2025

    Ben carried out the damp survey with exceptional professionalism and thorough attention to detail. His expertise & clear communication as he explained his findings ensured complete confidence in the results. A true credit to his field, Ben went above and beyond to deliver outstanding service.
    Verified reviewer
    Job location: TW15
  • 10

    Professional and Punctual

    Posted 30 November 2025

    Ben's team did damp remediation work and re-plastered some walls. They were professional, punctual, and did a great job.
    Verified reviewer
    Job location: HP5
  • 10

    Thoroughly recommend!

    Posted 31 October 2025

    Thoroughly recommend Avant Garde to anyone. From the survey to the remedial works themselves, Ben and his team were fantastic. The quotation was fair and, despite more than 18 months elapsing between quoting and carrying out the works, (due to logistical issues concerning a neighbour that were out of our control) they honoured the initial quotation and did not increase the price by a single penny. Jimmy, that carried out the works, was also lovely - and tidied up after himself at the end of each day. If you need damp-proofing works carried out, don't look any further than Avant Garde - 10/10!!
    Verified reviewer
    Job location: HP10
  • 9.67

    Jobs delivered as promised

    Posted 30 October 2025

    Avant Garde have worked with us on three separate occasions over the last years and on all three occasions did a good job, arrived on time, cleaned up after themselves and delivered as agreed and in line with the estimates. I also really appreciated Ben calling me every day if he was not on site to check in and make sure everything was as it should be.
    Verified reviewer
    Job location: TW11

Photos

Company Info

Owner

Mr Ben Sullivan

Ltd Company

18 years on Checkatrade

VAT Registered

Yes: 262191515

Domestic WorkCommercial Work

Why choose us?

  • Members of Checkatrade since 2008
  • Surveys carried out by fully qualified Property Care Association surveyors
  • Verifiable work history
  • Guarantees offered for all eligible damp proofing and timber treatments
  • All chemicals and materials conform to British Standards

We are leading damp specialists for both domestic and commercial customers throughout London and the South East. Properties we treat include domestic residences as well as commercial and historical buildings. We believe that taking a holistic view of your building is key to realizing the cause of the issue, with the ultimate aim of providing a permanent long-term solution using more traditional building techniques.

Our services include:

Damp proofing

  • Treatment of rising damp
  • Remedial injections
  • Open French drain
  • Tanking of basement and cellars
  • Rendering, (including horsehair and lime)

Timber treatments

  • Woodworm treatment
  • Dry rot treatment
  • Wet rot treatment
  • Suspended timber floor replacement

Condensation and Mould

  • Advice on condensation management and prevention
  • Pacifier vent installation
  • Installation of thermal insulation

External work

  • Rendering
  • Lime pointing
  • Repair and replacement of render plinths
  • French drains and pea shingle soak ways

About Avant Garde

Our company was first established in 2003, and we became members of Checkatrade in 2008. We have over a decade of experience in damp proofing and have served thousands of satisfied customers in this time.

We have a skilled team of expert surveyors and technicians and use only the highest quality treatments. Additionally, we are Sovereign Approved Contractors and adhere to their strict requirements for workmanship and materials used. We offer a company guarantee for our treatments, including for dampness and timber issues such as dry rot.

Our success lies in our commitment to our customers and to providing the highest quality workmanship and service. From your initial enquiry through to the completion of a project, we provide friendly, personable service that stands us out from larger companies.

We offer survey appointments throughout the week and at short notice where possible. Contact us now by submitting a written request or call us directly to discuss your specific requirements.

We look forward to receiving your enquiry.

Accreditations and awards

Sovereign Approved Contractor
Sovereign Approved Contractor

This trade passed up to 12 Checkatrade vetting checks

Member since March 2008

Individual checks

  • Identification

  • Proof of address

  • Financial

  • Qualifications and accreditations

  • County court judgement

  • Open source media

Business checks

  • Customer Reviews

  • Company trading history

  • Company duplication

  • County court judgement

  • Enhanced business check

  • Director checks

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