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

Construction and new-build mastic in Ashford, Kent

Planning work on a mastic package in Ashford? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Frame gaps too wide for sealant alone
  • Sanitary sealant damaged by following trades
  • Cracks opening in caulked internal joints
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
£5m PL insurance

Construction mastic in Ashford

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Construction mastic in Ashford

Most of the packages we price run well beyond frames: frame perimeters inside and out, caulking to trims and boards where the specification calls for it, sanitary silicone, kitchens, and the final snag list. Splitting those between trades often leaves gaps in responsibility and gives you a consistent finish across the job. We work on floor and skirting junctions, sanitary and kitchen joints and internal decorators’ caulk, and what we are called in for most is oversized or tapered gaps around new frames and frame perimeters left unsealed or poorly sealed. Whether you call it commercial sealant work, mastic application or joint sealing, in Ashford it comes down to the same thing: the right product in a properly prepared joint.

Bigger sites around a town like Ashford typically want mastic phased by plot, block or floor. CSCS-carded applicators work to the site’s rules and the specification, and any snags are cleared before handover.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Place
Ashford (TN23, TN24, TN25, TN26)
Wider area
Kent
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Work for main contractors and building owners

CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

When something else is needed

We check first that sealant really is the fix. It isn’t the answer for:

  • Approving fire stopping as compliant
  • Frame gaps too wide for sealant, which the installer needs to correct
  • Joints damaged after sign-off by following trades

If you are not sure, just call the office on 01277 525 020 or send photos by email and we’ll give you a straight answer.

Where we work in Ashford

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

How a job runs

Tell us your site hours and access windows and we will plan around them. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Sites in a big town such as Ashford frequently have reception sign-in, inductions and permits to work. Tell us about inductions, permits and site hours so the plan fits.

  1. Drawings, specification and programme come to us.
  2. We take off quantities and return a fixed quote.
  3. We agree with the site team which areas come first.
  4. Plots or floors are sealed as they’re handed over.
  5. Every joint is cleaned, set to depth and sealed with the specified product.
  6. After snagging, the work is handed over under our 12-month guarantee.

Preparing the site

  • Send any specification or drawings in advance
  • Send asbestos survey details if the building is pre-2000
  • Tell staff and tenants when we’ll be in

Ask for a quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, phone 01277 525 020 or send details through our quote form.

Get a price

Read more

Ashford: questions and answers

Will you plan work around the academic year at somewhere like Ashford College?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Can you work at a site such as Gallagher Retail Park, by Ashford?

Yes, sites like Gallagher Retail Park are within our area, along with the rest of Ashford. A few photographs and the unit address let us price the work.

Who decides which product is used?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Can one quote cover more than one building?

Yes. A group of buildings can go on one quote, and you deal with one contact throughout.

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, so we’ll confirm the curing time on the day.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.

Can you fit around our working hours?

Give us your site hours and any access windows in your enquiry, and we’ll plan around them. Our office runs Monday to Friday, 8am until 5pm.

Maintenance after handover

Regular inspection catches problems early. Specifically:

  • Ask installers to correct oversized gaps first
  • Ask for joint and product checks before the package is urgent
  • Allow flexibility for external sealing in damp or cold weather
  • Record the products used in the O&M file

Brief the sparkle clean so they don’t scrape the new joints. Blades and abrasive pads are the commonest cause of damage at the final clean so keep them off the joints.

Sanitary joints that fail early become defects soon after occupation. Water gets behind trays, vanity tops and panels. Getting the product and preparation right first time avoids that.

When to call us in Ashford

Wide, tapered or inconsistent gaps around frames are a common problem. Every product has limits on how wide a joint it can bridge. We flag them early rather than filling them with sealant that won’t last.

Typical triggers for a call:

  • Snag items on joints that need redoing before handover
  • Window and door perimeters that won’t pass inspection
  • Inconsistent sealant finishes from plot to plot
  • Sanitary sealant damaged by following trades

Projects at colleges like Ashford College (to the north-east of Ashford) tend to run to term dates, so the mastic is planned tightly.

Before you book anyone

  • Is the sealant right for the movement and the substrate?
  • Do they follow the manufacturer’s priming guidance?
  • Whether old or failed sealant will be cut out, not overlaid
  • Are they CHAS accredited or on Constructionline?

Questions to ask before you appoint anyone

Why it’s worth doing now in Ashford

When a package runs over budget, downgrading the product is a common first thought. The saving is small next to the cost of callbacks and defects, especially externally. Where an alternative is genuinely suitable, we will say so. In a town the size of Ashford, traffic, footfall and weather keep working on a failed joint. Catching it early keeps the fix simple.

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

Why clients in Ashford choose us

  • Constructionline member for supplier checks
  • Commercial sealant work since 2005
  • A fixed quote before work starts
  • Coloured sealants to suit the setting, where available

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

Mastic packages on Ashford sites

The South East is one of the drier parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team. Ashford is about 48 miles from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and each scheme needs its mastic sealed to programme.

Extensions at sites like The One Ashford Hospital (to the east of Ashford) usually sit beside working departments, and the mastic follows strict access rules. For contractors at a school such as Chilmington Green Primary School, sealing has to be finished before term starts.

Ashford is in Kent. Any commercial site in Ashford is covered. We work across 931 places in Kent, large and small. For work in that direction, see our London page (48 miles or so).

Postcode districts covered here: TN23, TN24, TN25 and TN26 for mastic packages. Among the streets we cover are Market Lane, Church Road and Station Road. With the A20 and A28 nearby, Ashford is straightforward for us to reach. Close to Ashford, our area also takes in Stanhope (1 mile south-west), Newtown (1 mile south-east), South Willesborough (1 mile south-east), Godinton (1 mile north-west) and Willesborough (1 mile east). Nearby towns on our patch include Canterbury (13 miles north-east), Sittingbourne (15 miles north), Folkestone (14 miles east), Faversham (12 miles north), Hythe (10 miles south-east) and Davington (12 miles north). As one of the bigger centres in Kent, Ashford has a broad mix of commercial, public and industrial buildings.

What’s near Ashford

Locally, jobs take us to sites close to The Locomotive pub, Ashford Green Corridors and Ashford School, among other places. Ashford has its own railway station: Ashford International station. Nearby you will also find William Harvey Hospital (2.1 miles east) and Ashford Designer Outlet (0.6 miles south-east). Green spaces nearby include Hatch Park.

Map of Ashford © OpenStreetMap contributors
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