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Cromwell Damp Proofing

Damp Surveyor. Cromwell Damp Proofing has been vetted and approved by TrustATrader. Covering Manchester

Membership number TT30834

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4.92 out of 5
8 reviews

  • Initial impression Initial impression: 5.0 out of 5.0
  • Punctuality Punctuality: 4.75 out of 5.0
  • Cleanliness Cleanliness: 5.0 out of 5.0
  • Quality Quality: 5.0 out of 5.0
  • Value Value: 4.75 out of 5.0
  • Overall opinion Overall opinion: 5.0 out of 5.0
  • 0 missed appointments in the past 6 months

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About Cromwell Damp Proofing, Salford

Hi I am Aaron Lawther, the man behind Cromwell Damp Proofing, a friendly family run business.

We aim to give a 100% professional friendly service and leave you with a flawless finish.

We take pride in our work and are always reasonably priced, giving full breakdown quotes for total piece of mind.

Most damp-proof installers are only certified to install a chemical damp proof course with a partial guarantee and just want to cover your walls in a plastic membrane to mask the problem. Cromwell Damp Proofing dig deep to rectify the underlying problem first.

One item to note is most of the so called 'damp proofing companies' out there are not college or NVQ trained in any way and have simply attended a 1-day course which teaches them how to install a DPC cream only.

We are certified damp-proof installers and qualified plasterers, so with us, you receive a full guarantee that both the damp proof course and replastering have been done to the very highest standards.

We plaster the walls after we have installed the damp proof course, giving total piece of mind that we are giving a full guarantee for both the damp proof course (DPC) and the plastering.

Our edge over other companies is rather than having three lots of tradesmen entering your home, namely :

1, Damp Proof Course Installer
2, Plasterer
3, Joiner to Refit Skirting

we do the job from start to finish. Usually by the end of the job, you will know us quite well!!

All our damp-proofing comes with a 10-year government recognized guarantee.

This is all you need to buy or sell a property when that dreaded survey highlights 'damp issues'.

Honesty is our stock in trade - if the work needed can’t be done, we won’t do a quick fix and run under a pretence we've solved the problem, only for it to come back some time later.

We will advise you on what to do and simply help by pointing you in the direction of the adequate professional you need.

My History I attended Stockport college full time to complete a 2-year diploma giving me level 1 and 2 in hand plastering and construction knowledge.

I then worked for New Charter Housing Trust, primarily working alongside surveyors diagnosing all sorts of damp, condensation and penetrating damp issues. Once the causes of damp were found, I would get to work removing the plaster, installing the damp proof course, then re plastering the walls to a perfect finish.

I also became an approved contractor to install damp proof course and give full guarantees for both damp proof course and plastering. This was when I completed my level 3 NVQ in Hand Plastering and Construction Knowledge.

I left New Charter to become independent. Since then, I have built up a large portfolio of builders and property developers as customers, who trust Cromwell Damp Proofing to fix and treat all aspects of damp in their properties.

Please note we do not do small jobs that are best served by a plumber – where a damp patch has occurred due to a leaking appliance or pipe. We specialise in DPC (Damp Proof Course), Capillary Rising Damp and DPC Chemical Injections projects

If you would like a quote, please get in touch; our friendly team will be happy to help you to arrange a date for a full damp inspection.

Please mention Trustatrader when calling.

Cromwell Damp Proofing

Sole trader
Verified on 30th June 2026
  • Identification checked
  • Company address verified
  • Customer references checked
  • Agreed to TrustATrader's high standards
  • Agreed to complaints procedure

Insurance details

Provider Simply Business Insurance
Verified 24th June 2026
Salford
Greater Manchester

Qualifications

  • City & Guilds Level 1 & 2 Construction Diploma Knowledge Tests - Construction Awards Alliance
  • CAA Cskills Awards Level 1 & 2 Diploma in Plastering (QCF)
  • Citb Cskills Awards Level 3 NVQ Diploma Plastering (Construction) - Solid (QCF)

Reviews (8)

  • Average rating: 4.67 out of 5

    Review by

    on

    • Initial impression Initial impression: 5 out of 5.0
    • Punctuality Punctuality: 5 out of 5.0
    • Cleanliness Cleanliness: 5 out of 5.0
    • Quality Quality: 5 out of 5.0
    • Value Value: 3 out of 5.0
    • Overall opinion Overall opinion: 5 out of 5.0
  • Average rating: 4.83 out of 5

    Review by

    on

    "Aaron responded promptly to our enquiry, came to look and explained what needed doing. He boarded and plastered a wall, doing a good job and clearing up after himself. We would be happy to use Cromwell again."

    • Initial impression Initial impression: 5 out of 5.0
    • Punctuality Punctuality: 4 out of 5.0
    • Cleanliness Cleanliness: 5 out of 5.0
    • Quality Quality: 5 out of 5.0
    • Value Value: 5 out of 5.0
    • Overall opinion Overall opinion: 5 out of 5.0
  • Average rating: 5.0 out of 5

    Review by

    on

    "I would definitely recommend Cromwell Damp Proofing. what a top guy, He lives Miles away but still had the time to come quote my jobs for me, very reliable and his work is spot on. I've used him for several jobs from damp proofing and full replaster, his work is very clean and his finish wall feels like glass, I would never think about going to no one else."

    • Initial impression Initial impression: 5 out of 5.0
    • Punctuality Punctuality: 5 out of 5.0
    • Cleanliness Cleanliness: 5 out of 5.0
    • Quality Quality: 5 out of 5.0
    • Value Value: 5 out of 5.0
    • Overall opinion Overall opinion: 5 out of 5.0
  • Average rating: 5.0 out of 5

    Review by

    on

    "No hesitation in recommending Aaron of Cromwell. Nothing too much trouble, extremely personable, always on time and very hard working."

    • Initial impression Initial impression: 5 out of 5.0
    • Punctuality Punctuality: 5 out of 5.0
    • Cleanliness Cleanliness: 5 out of 5.0
    • Quality Quality: 5 out of 5.0
    • Value Value: 5 out of 5.0
    • Overall opinion Overall opinion: 5 out of 5.0
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