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

Mastic contractors in Well Street

Construction mastic for Well Street, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Cracks opening in caulked internal joints
  • Window and door perimeters that won’t pass inspection
  • Failed sealant in an existing building being refurbished
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Construction mastic in Well Street

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

Construction mastic in Well Street, done properly

Buyers, tenants and clients notice sealant lines long before they notice the structure. A smeared bead round a window or a gap behind a worktop ends up on the snag list. Our aim is joints that pass at the first inspection, area by area through the programme. We work on floor and skirting junctions, window and door perimeters and cladding and panel joints, and the failures we are asked to look at most are snag items on joints that need redoing before handover and perimeter gaps outside the sealant’s range. Whoever orders the work in Well Street, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.

Around smaller places like Well Street, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.

We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application, and if something we did falls short, we return to it.

Place
Well Street (ME19)
Wider area
Kent
Cover
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What the job involves on each surface

Kitchens and utility areas

Kitchen joints are sealed after fitting and before final clean. A kitchen-suitable sealant is used.

Fire-rated sealant where specified

Fire-rated sealant is one type of fire-stopping product. Other products are used for some services and gaps. Tell us what records you need and we will confirm with the quote.

For managing agents and facilities managers

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.

What sets the cost

To price the job, we consider:

  • The product specified
  • Induction, permit and paperwork requirements
  • How accessible the joints are
  • Location, for remote and island sites

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

Sending details for a quote

For an accurate fixed quote, we need a clear picture of the site. Send us:

  • Photos of the joints, close up and from further back
  • How the joints are reached, and at what height
  • Specification clauses that apply
  • When you need the work done

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, ring 01277 525 020 or send photos by email.

New build and refits around Well Street

Well Street is about 27 miles from central London. Towns within reach of London tend to keep building, from flats to offices and schools, which keeps mastic packages in demand. Well Street has several hotels close by, all within 2 miles. When hotels extend or refit, the work is typically squeezed between peak periods, mastic included.

Units on estates such as Kings Hill Business Park, 1.5 miles south-west of Well Street, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. For a contractor at a hotel such as Swan Hotel, 1 mile to the north-west of Well Street, the mastic often has to be finished before a reopening date.

Well Street is about 4 miles west of Maidstone, in Kent. We cover commercial sites throughout Well Street, whether it’s a single job or part of a planned programme. Well Street is one of 931 places in Kent on our list. We also cover London, around 27 miles from Well Street.

Postcode districts covered here: ME19 for mastic packages. Close to Well Street, our area also takes in East Malling (1 mile north), West Malling (1 mile north-west), Kings Hill (1 mile south-west), Ditton (1 mile north-east) and Red Hill (2 miles south). Further afield, our area takes in Maidstone (4 miles east), Sittingbourne (14 miles east), Dartford (14 miles north-west), Sevenoaks (10 miles west), Royal Tunbridge Wells (12 miles south-west) and Gravesend (10 miles north).

Near you in Well Street

Around Well Street, our work takes us to commercial buildings near St James the Great Academy, The Rising Sun pub and Manor Park Country Park, among other places. The nearest railway station is East Malling station, about 0.5 miles east. A little further out are Coldrum Long Barrow (3.5 miles north-west) and Leybourne Castle (1.4 miles north). Green spaces nearby include Blue Bell Hill and Burham Down.

Map of Well Street © OpenStreetMap contributors

Why act early in Well Street

On a refurbishment, there’s a choice between resealing existing frames and replacing them. Sound frames often need only a new perimeter seal. If the frame is life-expired, we’ll tell you. Around Well Street, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.

A quote for mastic packages depends on quantities, condition and access, plus any specification you are working to. Ask us for a fixed quote.

Why clients in Well Street choose us

  • CHAS accredited
  • Public liability insurance in place
  • Products installed to the manufacturer’s instructions
  • Colour options checked against the specified product

See how commercial sealant jobs are priced and how we’re accredited.

Common problems we fix in Well Street

On construction sites, joints typically fail early because of when they were sealed, not what was used. If sealant goes in before the last trades are through, it gets knocked, painted over or contaminated, and the joint has to be redone.

If one of these sounds familiar, it’s time for a closer look:

  • Sanitary sealant damaged by following trades
  • A mastic package split between trades with no clear owner
  • Mastic snags holding up handover
  • Early adhesion failures on new external joints

New wings at hospitals like Maidstone Hospital (to the east of Well Street) bring long runs of window and panel joints to seal.

Questions to ask before you book

  • Can the work be phased to keep areas open?
  • How the existing material will be dealt with
  • Their pre-qualification and accreditations
  • The named product and why it was chosen

Choosing a commercial sealant contractor

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Jobs in and around smaller places like Well Street are normally planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. First we look at the scope on site or from drawings.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Paperwork is agreed and applicators are inducted on site.
  4. Sealing follows the programme as areas are released.
  5. Problems we find, such as oversized gaps, are raised right away.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Before we start on site

  • Let us know about inductions and permits
  • Arrange parking or a loading space
  • Clear stock, furniture or equipment away from the joints

Ask for a quote

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Get a price

Read more

Questions about Well Street

Can work at a site such as University for the Creative Arts - Maidstone fit around teaching?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Do you take on work at healthcare sites like Maidstone Hospital?

Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.

What happens if the weather stops external sealing?

Conditions have to suit the product before external work starts. Wet or cold joints cause adhesion problems.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

How long does a typical visit take?

It depends on the scope, but the work usually takes whatever the programme allows, since the work follows the trades as areas are released. For bigger or phased jobs, we’ll set out a timescale with the quote.

Can the sealant be colour-matched?

That depends on the product specified. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.

Do you use the sealant named in the specification?

The specified product is what goes in. Any suggested alternative is put to you before anything changes.

Accreditations

Trusted. Accredited. Insured.