Commercial sealant contractors in Charlton, Hampshire
Sealant work for offices, shops, hotels and other commercial buildings throughout Charlton and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Gaps behind commercial kitchen worktops and sinks
- Hardened, chalky sealant on south-facing or exposed elevations
- Sanitary sealant that has gone black and patchy
Need commercial sealant contractors in Charlton?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Commercial sealant contractors for commercial buildings in Charlton
Most commercial buildings carry hundreds of metres of sealant that nobody thinks about until it fails. Mastic Doctor works as a commercial sealant contractor for facilities managers, managing agents and main contractors. Our job is to diagnose the failure, remove the old bead and seal again using a product chosen for the movement and exposure. Most enquiries involve greasy, split joints in a kitchen or tea point and sanitary sealant that has gone black and patchy, across external facade joints, kitchen worktops and splashbacks and washrooms and tea points. One point of contact handles commercial sealant work in Charlton from the first photographs to the final walk-round, for single jobs and planned programmes alike.
A lot of what we do in Charlton is replacing sealant that has done its years: hardened, cracked or shrunk away from the faces, and letting water or dirt in.
Commercial sealant work around smaller places like Charlton 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.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Where
- Charlton (SP10)
- Region
- Hampshire
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Do you need commercial sealant contractors in Charlton?
Washrooms and kitchens wear sealant out in their own way. Constant moisture, cleaning chemicals and weak extraction let mould grow into the sealant. The fix is a new bead of anti-mould sanitary silicone.
These are often picked up first by site or facilities staff:
- Expansion joints with the sealant torn out
- Gaps behind commercial kitchen worktops and sinks
- Earlier reseals applied straight onto the failed bead
- Leaks that seem to come through a sealant line
For a hotel such as The Globe Hotel, 1.4 miles south-east of Charlton, the colour of a joint at the bar or the bath matters to the look of the room.
Before you book anyone
- What the guarantee covers, and for how long
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- How they handle RAMS and site documents
- Their pre-qualification and accreditations
Our process
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Jobs in and around smaller places like Charlton are normally planned as a single visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.
- First, details reach us through the quote form or a site visit.
- We diagnose the cause of failure and price a fixed scope.
- Work is phased around your occupiers where areas need to stay in use.
- Every failed bead is removed rather than covered.
- A suitable product for each joint goes in at the right depth and is tooled.
- A final walk-round, then the 12-month guarantee applies.
Getting the site ready
- Agree which areas must stay open
- Share the asbestos register for older buildings
- Move anything stored against the joints
Request a quote
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or use the quote form to discuss it first.
Advice
Questions about Charlton
Is Charlton off your patch?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
Can you work at a site such as Mylen Road Business Park, by Charlton?
Yes, sites like Mylen Road Business Park are within our area, along with the rest of Charlton. A few photographs and the unit address let us price the work.
What about asbestos in old mastic?
It’s possible in older buildings, especially those built before 2000. Before cutting anything out, we ask for the asbestos register or survey, and if something is suspected, work stops until it’s tested.
Do your applicators hold CSCS cards?
Yes. If you need card details for site access, tell us and we will confirm them with the quote.
Is it OK to apply fresh sealant over existing beads?
Removal of the failed sealant is always part of the job. New sealant can’t grip the old bead, so laying over it never lasts, and the faces are brought back to sound, dry material before resealing.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.
Does the weather affect the work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Internal work is far less affected.
Nearby places to Charlton
What else we do in Charlton
Site staff or a sealant specialist?
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
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.
Aftercare for building managers
For the best life from the joints:
- Keep barriers up until the new sealant has cured
- Keep abrasive pads and scrapers off resealed joints
- Check sealant as part of routine building inspections
- Act on the first lifting edges rather than waiting
Our workmanship on each job is backed by a 12-month guarantee. Keep the handover details with your O&M or maintenance records.
Sealant rarely fails all at once across a building. A few splits this year typically mean more next year so the whole run is worth inspecting. We’ll tell you which sealant joints need doing first and which can wait.
Frontages, fit-outs and joints in Charlton
Charlton lies roughly 64 miles out from central London. The South East around the capital has large numbers of business parks, offices and retail centres, especially around the motorway corridors. Multi-site occupiers here often want one sealant contractor across all their buildings. The area within 2 miles of Charlton holds a number of hotels. Refits in hotels bring joints at vanity tops, bar counters and reception desks where the colour has to suit the scheme, with rooms done in turn while the rest stay let.
A business with units at Mylen Road Business Park and Portway Industrial Estate needn’t use two contractors for its sealant. For a shop at a centre such as Enham Arch Retail Park, 1.1 miles east of Charlton, tidy joints at counters and displays matter as much as the fixtures.
Charlton is about 1 mile north-west of Andover, in Hampshire. Charlton sits inside our coverage and the rest of Hampshire, with the same fixed quotes and 12-month guarantee as everywhere else. Charlton is one of 723 places we cover in Hampshire for sealant joints. Southampton is covered too, around 22 miles from Charlton.
If you need commercial sealant contractors in SP10, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Buildings on Dacre Close, Home Farm Gardens and Augustine Way are within our area. Close to Charlton, our area also takes in Foxcotte (1 mile north-west), Penton Mewsey (1 mile west), Penton Corner (1 mile west), Penton Grafton (1 mile west) and Red Post Bridge (2 miles south-west). Further afield, our area takes in Winchester (14 miles south-east), Hyde (13 miles south-east), Tidworth (7 miles west), Weeke (13 miles south-east), Stanmore (14 miles south-east) and Ludgershall (6 miles north-west).
Landmarks near Charlton
Locally, jobs take us to sites close to Portway Infant School. For rail, the closest station is Andover station, about 0.8 miles south-east. Well-known places in the area include Andover War Memorial Hospital (0.5 miles south-east) and Andover Museum (1.3 miles south-east). Green spaces nearby include Anton Lakes and Mill Lake.
Owners, agents and contractors
We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, which keeps the paperwork simple.
If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
What sealant work can’t fix
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Leaking roofs, gutters or flat-roof membranes (those need a roofer)
- Water from a services leak rather than a joint
- Misted, cracked or failed glazing units (a glazier’s job)
If in doubt, phone 01277 525 020 or email drawings and photos and we’ll say what we think.
Surfaces we seal
- Movement joints in walls and floors
- Floor and threshold joints
- Window and door perimeters
- External facade joints
- Washrooms and tea points
- Kitchen worktops and splashbacks