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

Commercial sealant contractors in Compton, Hampshire

Commercial sealant contractors for Compton, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • A top-up bead over failed sealant, now lifting
  • Sanitary sealant that has gone black and patchy
  • Shrunken sealant along kitchen worktops and splashbacks
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Commercial sealant contractors for Compton sites

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

Owners, agents and contractors

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.

How we handle commercial sealant contractors in Compton

Mastic Doctor has been sealing joints for businesses and contractors since 2005: CHAS accredited, Constructionline member, five million pounds of public liability insurance and CSCS-carded applicators. If your site needs RAMS, an insurance certificate or CSCS details, say so and we will confirm with the quote. We work on external facade joints, floor and threshold joints and kitchen worktops and splashbacks, and what we are called in for most is leaks that seem to come through a sealant line and gaps behind commercial kitchen worktops and sinks. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Compton, preparation and product choice get the time they need.

Quotes for commercial sealant in Compton can come from photos and a joint schedule, or from a walk-round, and the scope is set out in writing.

Commercial sealant work around smaller places like Compton tends to mean pubs and restaurants, halls, farm shops and offices in converted farm buildings. Kitchens, toilets and window frames in all of them need resealing sooner or later.

We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

Where
Compton (SO21)
Wider area
Hampshire
Cover
12 months on every job
Quotes
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

How the job changes by surface

Movement joints in walls and floors

Brickwork, blockwork and floor slabs all have movement joints that need a flexible seal. When the seal fails, debris gets in and the joint stops working. The new sealant is chosen for the movement and, on floors, the traffic.

Facade and cladding joints

On a facade, a failed joint is often only visible close up. Photos from a closer viewpoint help us price, with colours confirmed for the product chosen.

Diagnose, treat, sign off

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself normally takes anything from part of a day on a short run of joints to several weeks on a large phased package, and our waste is bagged and taken away as we go. For a building around Compton, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. We start with the evidence: photos, drawings or a look on site.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. We agree the order of work, access windows and site hours with you.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Depth is set with backing, then the sealant is applied, tooled and the area tidied.
  6. We hand back each area with its cure time and our 12-month guarantee.

Preparing the site

  • Clear stock, furniture or equipment away from the joints
  • Point out parking and an unloading spot
  • Send any specification or drawings in advance

Ask for a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call the office on 01277 525 020 or send photos by email with what you know.

Get a quick quote

Related advice

Honest limits

Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:

  • A failed roof covering or waterproofing membrane
  • Misted, cracked or failed glazing units (a glazier’s job)
  • Leaks from pipework, wastes or valves (that’s plumbing)

Not sure which it is? You can call 01277 525 020 or email drawings and photos and we will tell you honestly before you book.

Joints and surfaces we work on

  • External facade joints
  • Floor and threshold joints
  • Movement joints in walls and floors
  • Kitchen worktops and splashbacks
  • Window and door perimeters
  • Washrooms and tea points

Common questions from Compton clients

Will you take on work at estates like Hazeley Enterprise Park, close to Compton?

Yes. Our area takes in Compton and its surroundings, with estates and business parks such as Hazeley Enterprise Park included. Send details of the unit and the work through our quote form for a quick quote.

Is a smaller place like Compton outside your area?

Not at all. Compton is within our area. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Can weather delay the job?

Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

How long will the new sealant last?

There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

Will the building have to shut during the work?

We phase the work so parts of the building stay open. Tell us your site hours and access windows and we’ll plan around them.

How long does a job like this take?

The duration is planned around your programme and the access we are given. We will give you an estimate of time on site when we quote.

Is it fine to apply new sealant on top of old?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

After the work

Once the work is signed off, a little attention goes a long way:

  • Keep washroom and kitchen extraction working
  • Keep abrasive pads and scrapers off resealed joints
  • On pre-2000 buildings, share the asbestos information before work starts
  • Add sealant to the planned maintenance inspection list

We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records.

Sealant rarely fails all at once across a building. The first failures are often a warning about the rest, so it makes sense to look at the wider elevation or block. We will tell you which sealant joints need doing first and which can wait.

Working on commercial sites near Compton

Less than 3 miles from Compton there are at least three named estates and business parks. Each new occupier on a park like these tends to refit, from reception to staff kitchen. Compton sits in one of the drier corners of the country, the South East. External joints still need dry faces and the right temperature, and damp or frosty mornings can hold work up.

Occupiers with premises at both Hazeley Enterprise Park and Wessex Business Park could have the sealant at each handled under one quote. Offices at parks like Hazeley Enterprise Park, 1.4 miles east of Compton, have receptions, kitchens and glazed partitions where a tidy joint matters. For premises near Shawford station, 0.5 miles to the east of Compton, footfall is part of the plan: work is phased so shops and offices keep trading.

Compton is about 3 miles south of Winchester, in Hampshire. We cover Compton, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Compton is one of 723 places in Hampshire on our list for sealant joints. For work in that direction, see our Southampton page.

If you need commercial sealant contractors in SO21, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Buildings on Field Way, Clease Way and Cliff Way are within our area for sealant joints. If your building is just outside Compton, we cover South Down (1 mile south), Shawford (1 mile east), Otterbourne (1 mile south), Twyford (1 mile east) and Oliver's Battery (2 miles north). A short drive away, we cover Winchester (3 miles north), Eastleigh (4 miles south), Fareham (13 miles south-east), Andover (14 miles north-west), Totton (10 miles south-west) and Chandler's Ford (3 miles south-west).

Around Compton

Recent enquiries here include premises near The Bridge Inn, Thornden School and St. Cross Park and the streets around them. The closest station to Compton is Shawford station, roughly 0.5 miles east. Well-known places in the area include Balfour Museum of Hampshire Red Cross History (2.4 miles north) and Royal Hampshire County Hospital (2.8 miles north). The countryside around Compton includes Shawford Down and Twyford Down.

Map of Compton © OpenStreetMap contributors

Doing it in-house

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Accreditations

Trusted. Accredited. Insured.