The Mastic Doctor team standing beside their branded vans outside an office building
Surrey · England

Commercial sealant contractors in Wonersh, Surrey

Sealant work for offices, shops, hotels and other commercial buildings in Wonersh. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Movement joints packed with grit and debris
  • Hardened, chalky sealant on south-facing or exposed elevations
  • A top-up bead over failed sealant, now lifting
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors in Wonersh

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Commercial mastic work in Wonersh

Inside a commercial building, sealant does a lot of quiet work: around sanitaryware, along worktops and splashbacks, at window boards, partition heads and floor junctions. Outside, it closes facade joints, frame perimeters and movement joints against the weather. Our applicators work on both the inside and the outside of the building. We work on washrooms and tea points, window and door perimeters and movement joints in walls and floors, and the failures we are asked to look at most are wall and floor joints that have lost their seal and layers of sealant, all of them failing. A specialist sealant contractor works differently from a general builder: in Wonersh, that means joint design, primers and backing rod as standard.

In an occupied building in Wonersh, the job is planned so areas stay in use: washrooms in turn, floors in sections and entrances kept open.

Rural business units near smaller places such as Wonersh are frequently converted agricultural buildings. Old masonry beside new aluminium, timber and plasterboard gives plenty of joints between materials that move differently, and a sealant colour that suits the building’s character is often part of the brief.

A 12-month guarantee applies to all our work. Should something we installed fail, give us a call on 01277 525 020 or email the details over and we will come back to it.

Place
Wonersh (GU5)
Region
Surrey
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Commercial clients in Wonersh

Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.

Why it’s worth doing now in Wonersh

Spot repairs have their place. Where the remaining sealant is just as old, it tends to fail soon after, so access and set-up end up being paid for twice. Where it helps, we quote a patch and a full reseal side by side. Halls, stores and units around places like Wonersh may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.

What you get with us

  • Health and safety: CHAS accredited
  • Sealing commercial buildings since 2005
  • Matching to RAL references, product permitting
  • One number for every site we cover

See what affects the cost and how we’re accredited.

Cost factors for sealant joints

There’s no standard rate for sealant work, since sites vary so much. What we look at:

  • Joint width, depth and condition
  • Whether the work must be split into stages
  • Access and working height
  • How much existing material needs removing

The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.

What to include in your enquiry

A good diagnosis starts with the right details. Let us know:

  • Whether the building will be occupied during the work
  • Any dates the work must fit around
  • Specification clauses that apply
  • Clear photographs of the problem areas

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to call 01277 525 020 or use the quote form.

Common questions from Wonersh clients

Must a hotel around Wonersh close while you work?

Rarely, if ever. We take a few rooms out at a time. We agree the order of rooms and the timings with you before we start.

Is a smaller place like Wonersh outside your area?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Is it OK to apply fresh sealant over existing beads?

Every failed bead is cut out completely. Laying new silicone on old gives it nothing to grip, and the faces are brought back to sound, dry material before resealing.

Can weather delay the job?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

How do you choose the sealant?

If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Is your work guaranteed?

A 12-month guarantee covers the workmanship from handover. Keeping joints clean and inspected helps them last well beyond that.

How is commercial sealant work priced?

Start with whatever information is to hand. Questions or a site visit follow where needed.

Commercial premises in Wonersh

At least three named trading, business or retail sites lie within about 3 miles of Wonersh. Sites like these see regular refits, with shopfronts, offices and staff areas to seal, often in a colour the occupier specifies. Wonersh has several hotels close by, all within 2 miles. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet; work is planned so the hotel keeps trading.

In hotels such as Barnett Hill House Hotel, which lies north-east of Wonersh, refurbishments normally mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes. Shops and cafés around stations like Chilworth station, 1.5 miles to the north-east of Wonersh, trade from early, so work is timed around them. Occupiers with premises at both Broadford Business Park and The Astolat Industrial Estate could have the sealant at each handled under one quote.

Wonersh is about 4 miles south of Guildford, in Surrey. Any commercial site in Wonersh is covered. Across Surrey, 379 places are covered, Wonersh among them. Our Reading page has more on work in that area (26 miles or so).

Commercial sites across GU5 are covered. Streets here include The Street, Woodyers Close and The Close, and sites on any of them can send details for a fixed quote. If your building is just outside Wonersh, we cover Bramley (1 mile west), Shamley Green (1 mile south-east), Birtley Green (1 mile south), Stroud Common (2 miles south-east) and Grafham (2 miles south). Bigger towns within reach include Guildford (4 miles north), Woking (8 miles north), Camberley (12 miles north-west), Epsom (15 miles north-east), Farnham (11 miles west) and Reigate (15 miles east).

Local landmarks in Wonersh

Locally, jobs take us to sites close to Shalford Mill, Broadwater School and The Grantley Arms Public House and the streets around them. The nearest railway station is Chilworth station, about 1.5 miles north-east of the centre. A little further out are Surrey Police Museum (2.6 miles north-west) and Guildford Castle (2.9 miles north-west). Not far away are St Martha's Hill and Silent Pool.

Map of Wonersh © OpenStreetMap contributors

Site staff or a sealant specialist?

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.

Aftercare for building managers

Keep the joints in good shape with a few simple steps:

  • Look at the sealant around anything that has been moved or replaced
  • Keep washroom and kitchen extraction working
  • Act on the first lifting edges rather than waiting
  • Note dates and locations of sealant work for future planning

Keep an eye out for other trades after we have gone. Shop refits, new services and replaced fittings often break the seal around them, and it’s easy to forget to reseal afterwards. Where work has disturbed a joint, just call the office on 01277 525 020 or email the details over for a quote.

Each spell of wet weather pushes more water through an open joint. Behind a panel or frame, that water can sit unseen for a long time. Catching it at the sealant stage avoids the bigger repair.

How a job runs

Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. Smaller jobs around Wonersh can be grouped with others nearby. A fixed quote is given before anything starts.

  1. First, details reach us through the quote form or a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Where parts of the building must stay open, the work is phased.
  4. Old sealant is cut out completely, never sealed over.
  5. Each joint gets a suitable sealant, laid to depth and tooled.
  6. We check the work with you, and the 12-month guarantee starts.

Getting the site ready

  • Explain the parking and delivery arrangements
  • Tell staff and tenants when we will be in
  • Tell us what induction or permit system the site runs

Quotes

Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or send details through our quote form.

Ask for a quote

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