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

Construction and new-build mastic in Charlton, Hampshire

Commercial sealant work in Charlton for contractors, FMs and building owners: mastic packages for new-build and refurbishment projects, quoted at a fixed price.

  • Mastic snags holding up handover
  • Internal caulk splitting as the building dries out
  • Early adhesion failures on new external joints
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Construction mastic for Charlton sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

What the job involves on each surface

Kitchens and utility areas

On commercial kitchen fit-outs, hygienic sealants are often specified. Joints are sealed smooth so they’re easy to clean.

Internal decorators’ caulk

Caulk is easy to apply badly. Done properly, it saves decorators time and gives a clean line.

Construction mastic for commercial buildings in Charlton

On a new build, the mastic package is one of the last trades through each area, which puts it right on the critical path. Mastic Doctor takes on mastic packages for main contractors and developers with projects in Charlton, sealing plot by plot or floor by floor as areas are released. If you have sanitary sealant damaged by following trades and window and door perimeters that won’t pass inspection, we can put it right, whatever the surface. 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.

For a site near Charlton, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Send drawings or photos and the programme and we will quote to suit.

We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.

Where
Charlton (SP10)
Region
Hampshire
Cover
12 months on every job
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

When it isn’t the sealant

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Rework caused by others damaging completed areas
  • Approving fire stopping as compliant
  • Specifying the product where the designer hasn’t

If in doubt, ring 01277 525 020 or email us and we will say what we think.

Where we work in Charlton

  • Sanitary and kitchen joints
  • Floor and skirting junctions
  • Window and door perimeters
  • Cladding and panel joints
  • Internal decorators’ caulk
  • Brick and block movement joints

Sites and facades in and around Charlton

Charlton has several hotels close by, all within 2 miles. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. Charlton sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so external mastic is timed for workable conditions and agreed with the site manager.

Work at a hotel such as The Globe Hotel (1.4 miles south-east of Charlton) tends to be programmed around bookings, mastic included. For contractors at a college like Andover College (1.1 miles south-east of Charlton), perimeters and internal sealant are timed for the holidays.

Charlton is about 1 mile north-west of Andover, in Hampshire. We cover Charlton and the rest of Hampshire, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 723 places in Hampshire, large and small. Sites around Southampton have their own page, roughly 22 miles from Charlton.

Business premises anywhere in SP10 are within our area for mastic packages. Among the streets we cover are Dacre Close, Home Farm Gardens and Augustine Way, and sites on any of them can send details for a fixed quote. We also cover 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). A short drive away, we cover 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).

Around Charlton

Recent enquiries here include premises near Portway Infant School and the streets around them. Charlton’s nearest 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). Open spaces near Charlton include Anton Lakes and Mill Lake.

Map of Charlton © OpenStreetMap contributors

What happens if it’s left?

A quick bead over a damaged joint can get an area past inspection, but it rarely lasts. New sealant laid on old or dirty sealant has nothing to bond to and the defect reappears in the defects period. Damaged joints are removed and resealed from clean faces. Older rural buildings around Charlton move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

What you get with us

  • Constructionline member
  • Fully insured
  • Products installed to the manufacturer’s instructions
  • Health and safety: CHAS accredited

See how commercial sealant jobs are priced or our accreditations and insurance.

Building owners, agents and FMs in Charlton

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Charlton can sit alongside others in a wider programme.

How a job runs

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. For work around Charlton, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.

  1. First we look at the scope on site or from drawings.
  2. A fixed quote sets out scope, products and phasing.
  3. Paperwork is agreed and applicators are inducted on site.
  4. We seal plot by plot or floor by floor in line with the programme.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. Final snagging is completed and the 12-month guarantee applies.

Getting the site ready

  • Have the specification and drawings to hand
  • Warn occupants and staff about the work
  • Tell us your opening times and when work is allowed

Request a quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, phone 01277 525 020 or use the quote form.

Get a price

Read more

Common problems we fix in Charlton

On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding, so preparation matters as much here as on a reseal.

Look out for the following:

  • A long mastic snag list close to completion
  • Oversized or tapered gaps around new frames
  • Cracks opening in caulked internal joints
  • Early adhesion failures on new external joints

Units on estates such as Mylen Road Business Park, 0.8 miles to the south of Charlton, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.

Questions to ask before you book

  • How the joint faces will be prepared and primed
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • What the guarantee covers, and for how long
  • How they’ll work around occupants

Our contractor checklist

Questions we are asked in Charlton

Will you take on work at estates like Mylen Road Business Park, close to Charlton?

Yes. Our area takes in Charlton and its surroundings, with estates and business parks such as Mylen Road Business Park included. A few photographs and the unit address let us price the work.

Is Charlton too small for you to travel to?

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.

Is any job too small?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Do you offer coloured sealant?

That depends on the product. Some ranges are wide, others limited, so the available colours are confirmed with the quote.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

What happens if old sealant might contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

What does a mastic package usually include?

It depends on the specification, but frames, sanitary, kitchens, caulk where specified and snagging are typical.

Accreditations

Trusted. Accredited. Insured.