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The 10 best cellar conversion specialists in Manchester

Planning to turn a cellar into useful living space in Manchester? Start by checking the source of moisture and whether the property needs waterproofing, tanking, ventilation or plastering before conversion work. It is also worth asking for a written quotation and confirming whether surveys, reports, guarantees or follow-on repairs are included.

What puts one above another

Every business in this guide to cellar conversion specialists in Manchester earned its place through steady feedback from customers and a clear focus on this kind of work. We set the order ourselves and look at it again from time to time.

Businesses cannot pay to join this list. Some that are already in it buy a more complete profile or a featured spot, which is always marked.

Top 3Complete listMap

Compare 10 cellar conversion specialists in Manchester

JAG Remedials Ltd, Manchester#1
What sets it apart
  • Basement waterproofing and tanking

  • Free homeowner quotations

  • Ten-year guarantee on specific works

JAG Remedials Ltd

5.054 reviews
Recommended for
Homeowners dealing with damp, condensation or waterproofing

JAG Remedials Ltd carries out damp proofing and remedial work across Greater Manchester, including rising damp, penetrating damp, basement waterproofing and condensation control. The company offers free, non-obligation quotations for homeowners, with a quotation visit arranged before work is scheduled.

After acceptance, JAG Remedials coordinates the work and can provide guarantees for specific damp-proofing treatments, including a certificate where the relevant guarantee applies. Its surveyors also assess properties involved in sales or purchases, with a charge applying when a survey is required. Rising damp treatments are among its listed services.

Damp Solutions UK - Manchester#2
What sets it apart
  • Damp and timber reports

  • Positive Input Ventilation installations

  • Full basement conversions

Damp Solutions UK - Manchester

5.051 reviews
First Floor, Damp Solutions UK - Manchester, Swan Buildings, 20 Swan St, Manchester M4 5JW, United Kingdom
Recommended for
Homeowners investigating damp or mould

Damp Solutions UK - Manchester surveys and treats damp and condensation problems across Manchester, Sheffield and the High Peak. Its work includes damp proofing, home ventilation and damp and timber reports, with reports also available for buyers investigating a property before purchase.

Positive Input Ventilation addresses condensation and mould issues, while the business also delivers full basement conversions in North West homes. Surveys and reports are carried out by a certified surveyor in remedial treatments, and a damp and timber report starts from £270.

Heritage Plastering & Damp Proofing, Manchester#3
What sets it apart
  • Mould treatment addresses underlying causes

  • Paint-ready wall and ceiling finishes

  • Residential and commercial plastering

Heritage Plastering & Damp Proofing

5.045 reviews
Recommended for
Homeowners needing plastering or mould remediation

Heritage Plastering & Damp Proofing handles skimming, re-skimming and plaster repairs across Greater Manchester for residential and commercial properties. The team works from single-room repairs to full new-build programmes, including ceiling repairs and damp proofing.

For mould problems, the business treats the mould and investigates causes such as condensation, leaks or cold bridging. It can recommend ventilation, insulation or plaster systems and leave walls with a mould-resistant, paint-ready finish. The service also covers cracks, blown patches and artex removal, with ceilings made flat and ready to decorate. Free written quotes are available.

M&M Damp proofing &building, Manchester#4
What sets it apart
  • Damp diagnosis and treatment under one roof

M&M Damp proofing &building

5.038 reviews

Open 24 hours

13 Thornfield Rd, Manchester M19 1BN, United Kingdom
Recommended for
Property owners dealing with damp or moisture damage

M&M Damp proofing &building diagnoses and treats damp, moisture and related building problems across Manchester and the North West. Services include rising and penetrating damp treatment, condensation control and waterproofing.

The business also provides mould remediation, basement tanking, roofing, structural repairs and damp proof course installation. Its process begins with an inspection to identify the source of moisture, followed by recommendations tailored to the property. Basement tanking creates a barrier against water ingress, while condensation work can include ventilation and insulation advice. Damp diagnosis and treatment brings investigation and remedial work together.

North West Damp Proofing, Manchester#5
What sets it apart
  • Pre-purchase damp surveys

  • Investigates causes before treatment

  • Covers damp, mould and condensation

North West Damp Proofing

4.838 reviews
Recommended for
Homeowners, landlords and buyers investigating damp

North West Damp Proofing investigates and treats moisture problems across Greater Manchester and the North West, with damp surveys and mould control among its core services. It also provides condensation solutions, basement waterproofing and plastering for homes and businesses.

A pre-purchase damp survey helps buyers identify damp, mould and timber concerns before completing a property purchase. Surveyors inspect the property’s walls and floors, then explain the likely cause and suitable next steps. Professional damp surveys start from £79 including VAT, while the pre-purchase survey is advertised at £150.

M.A Dampcure, Manchester#6
What sets it apart
  • Damp treatment

  • Plastering alongside damp work

  • Quote arranged after enquiry

M.A Dampcure

4.760 reviews

Open 24 hours

Broughton Rd, Salford M6 6NA, United Kingdom
Recommended for
Property owners needing damp-related remedial work

Damp-related property work is the focus of M.A Dampcure, with the team also carrying out plastering. The business responds to property issues, arranges quotations and completes remedial work in homes, making it relevant to owners dealing with damp or associated internal damage.

A quote has been arranged on the day of enquiry in one documented case, while other work involved damp workers and plasterers. The team also cleans up after completing the job. Damp treatment and plastering summarise the two supported areas of work.

DAMPBLOCK, Manchester#7
What sets it apart
  • Damp, mould and condensation service

  • Handles repairs through redecoration

  • Coordinates access and sign-off

DAMPBLOCK

5.021 reviews
The Cultural Centre, Bury Old Rd, Manchester, Salford M7 4QY, United Kingdom
Recommended for
Landlords needing end-to-end damp remediation

DAMPBLOCK manages damp, mould and condensation repairs for estate agents, landlords and homeowners across the North West. Its end-to-end service starts with arranging access and assessing the property, then advises on the required work before completing repairs, redecoration and snagging.

The team can coordinate radiator removal, joinery and reinstatement work as well as damp proofing, allowing one provider to manage the project rather than multiple trades. DAMPBLOCK identifies the root cause of damp and mould issues, provides a clear quote and issues a report when works are signed off.

Peter Cox, Manchester#8
What sets it apart
  • Survey-led property repairs

  • Internal and external remedial work

Peter Cox

4.677 reviews

Open 24 hours

4 Gorse St, Chadderton, Oldham OL9 9QH, United Kingdom
Recommended for
Homeowners dealing with damp or masonry defects

Damp problems, failed lintels and areas needing structural repair are surveyed and treated by Peter Cox. Its teams work across internal and external areas, including damp proof courses, window lintel repairs and Helibar fixes, with the survey forming part of the process.

The business coordinates office staff, surveyors and technicians from quotation through completion. It can also reinstate affected areas, such as floorboarding after work beneath a bay window, giving property owners a service that covers repair and finishing tasks.

BAR Preservation, Manchester#9
What sets it apart
  • Damp diagnosis before remedial work

  • Historic-building restoration

  • Structural and timber preservation

BAR Preservation

4.652 reviews
Restoration House, 46-48 Townley St, Middleton, Manchester M24 1AS, United Kingdom
Recommended for
Owners of damp, timber or structurally affected buildings

Damp surveys, timber preservation and structural repairs are central to BAR Preservation’s work for domestic and commercial buildings throughout Manchester and beyond. Its surveyors investigate dampness, identify likely causes and recommend remedial work. The company also handles timber decay and infestation, wall ties and structural defects.

Repair work includes masonry reinforcement, wall-tie replacement and lintel work. Restoration can involve lime pointing, stone indenting and stone restoration for historic or delicate buildings. BAR Preservation works with architects, surveyors, engineers and property owners, using moisture meters and thermal imaging to support reporting. Specialist damp surveys help establish the issue before remedial work is planned.

Chorlton Damp Proofing, Manchester#10
What sets it apart
  • Cause-led damp diagnosis

  • Salt-retardant re-plastering

  • Free homeowner visit and quote

Chorlton Damp Proofing

4.642 reviews

Open 24 hours

76 Keppel Rd, Chorlton-cum-Hardy, Manchester M21 0BW, United Kingdom
Recommended for
Homeowners investigating damp, mould or condensation

Rising damp, penetrating damp, condensation and mould are diagnosed and treated by Chorlton Damp Proofing across South Manchester. The team inspects the property and uses damp meters to identify the cause, rather than simply covering visible staining. It also handles plastering and making good after treatment.

Work can include chemical damp-proof course injection, repairs to the source of penetrating damp and mould treatment with attention to ventilation. Re-plastering uses salt-retardant renders, leaving walls ready for decoration once dry. Homeowners receive a free visit and quote, while pre-purchase and pre-sale written damp surveys cost £70.

The comparison in brief

#BusinessRatingReviewsRecommended for
#1JAG Remedials Ltd 5.054Homeowners dealing with damp, condensation or waterproofing
#2Damp Solutions UK - Manchester 5.051Homeowners investigating damp or mould
#3Heritage Plastering & Damp Proofing 5.045Homeowners needing plastering or mould remediation
#4M&M Damp proofing &building 5.038Property owners dealing with damp or moisture damage
#5North West Damp Proofing 4.838Homeowners, landlords and buyers investigating damp
#6M.A Dampcure 4.760Property owners needing damp-related remedial work
#7DAMPBLOCK 5.021Landlords needing end-to-end damp remediation
#8Peter Cox 4.677Homeowners dealing with damp or masonry defects
#9BAR Preservation 4.652Owners of damp, timber or structurally affected buildings
#10Chorlton Damp Proofing 4.642Homeowners investigating damp, mould or condensation

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What Mancunians ask before booking

How much does a cellar conversion cost in Manchester?

Costs depend on the property and the work required. Services include basement waterproofing, tanking, ventilation, plastering, damp treatment and full basement conversions. Some businesses provide free quotations, while damp and timber reports start from £270 and professional damp surveys from £79 including VAT.

What does a cellar conversion include in Manchester?

A conversion may involve investigating moisture, waterproofing or tanking, ventilation, plastering and making good. Full basement conversion work is available, while other providers focus on surveys or remedial work. Ask whether the quotation covers diagnosis, treatment, finishing and any structural repairs.

Can I get a damp survey before converting a cellar in Manchester?

Yes. Damp surveys and damp and timber reports are available for homeowners and buyers. Surveyors inspect walls and floors, investigate likely causes and explain suitable next steps. Some reports are prepared for pre-purchase decisions, while others support planning remedial work before a conversion.