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

Colt's Hill facade sealing

Need facade sealing in Colt's Hill? It’s simple: send details, get a quote, we seal, guaranteed.

  • Failed sealant on precast panel joints
  • Leaks at window and door perimeters
  • Patch repairs that keep failing
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing in Colt's Hill

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

When to call us in Colt's Hill

Three-sided adhesion is a classic installation fault. With no backing, the sealant is restrained and rips when the facade moves.

What tends to prompt an enquiry:

  • Previous reseals run over old sealant
  • Gaps between rainscreen or cladding panels
  • Failed seals around shopfront and entrance frames
  • Cold air coming in at window perimeters

On a campus such as University of Kent - Tonbridge, 4.1 miles to the west of Colt's Hill, new teaching buildings and residences are normally built and refurbished around the academic year.

What to look for in a quote

  • Are they CHAS accredited or on Constructionline?
  • What the guarantee covers, and for how long
  • Whether old or failed sealant will be cut out, not overlaid
  • Proof of insurance

How to choose a sealant contractor

Facade sealing for commercial buildings in Colt's Hill

Installing framed glazing systems isn’t part of our work. What we seal are the joints around them: the frame-to-structure perimeter, panel-to-panel joints and window and door surrounds, using sealants classified for facade or glazing use. We work on window and door perimeters, cladding panel joints and perimeter joints where frames meet the structure, and the usual reasons a site gets in touch are damp patches beside frames after rain and cladding panel joints that have opened up. A specialist sealant contractor works differently from a general builder: on jobs in Colt's Hill, preparation and product choice get the time they need.

Around smaller places like Colt's Hill, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.

Place
Colt's Hill (TN12)
Wider area
Kent
Guarantee
12 months on our workmanship
Price
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What sets the cost

Quotes vary with the job. It mainly depends on:

  • The site’s rules and procedures
  • Whether the work must be split into stages
  • Joint width, depth and condition
  • Which sealant the job calls for

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

What to include in your enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Anything awkward about access or site hours
  • Your programme or deadline
  • Whether an asbestos survey exists
  • The type of building and who uses it

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, speak to us on 01277 525 020 or email us.

General trades versus a specialist

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

How a job runs

Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. For a building around Colt's Hill, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.

  1. First we review photographs, drawings or what we saw on a visit, and agree how each joint will be reached.
  2. The old bead is cut away completely, not overlaid.
  3. Both faces are cleaned and, where the product needs it, primed.
  4. Closed-cell rod fixes the depth, and the sealant grips two sides only.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. The completed runs are checked with you, then the 12-month guarantee applies.

Preparing the site

  • Have the specification and drawings to hand
  • Arrange parking or a loading space
  • Flag any permit to work we will need

Getting a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.

Get a price

Related advice

Questions we’re asked in Colt's Hill

Will you plan work around the academic year at somewhere like University of Kent - Tonbridge?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Is a smaller place like Colt's Hill outside your area?

No. Places such as Colt's Hill are covered as much as the big towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.

Does the weather affect the work?

For external joints, 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.

Can you work in cold or wet weather?

Wet joints or temperatures outside the product’s range mean waiting. The programme allows for it and we tell you if the forecast changes things as the work goes on.

Do you replace failed glazing units?

No. We don’t install glazing systems, windows or glass. We seal the joints around them, such as perimeter joints where frames meet the structure.

How soon can the area be used again?

We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.

Will you just go over the old sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.

Mastic packages on Colt's Hill sites

The South East is one of the drier parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so the external programme keeps a little slack. Central London is about 30 miles from Colt's Hill. Construction around the commuter belt mixes station-side flats with refurbished offices and units, so mastic packages have to keep pace with busy programmes.

Projects at schools like Capel Primary School work to term dates, so mastic is programmed tightly. Hospital estates such as Tunbridge Wells Hospital at Pembury (2.7 miles south-west of Colt's Hill) tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan.

Colt's Hill is about 4 miles south-east of Tonbridge, in Kent. Anywhere in TN12, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Colt's Hill is one of 931 places in Kent on our list for facade joints. There’s a separate page for London, about 30 miles away.

Commercial sites across TN12 are covered for facade joints. Among the streets we cover are Colts Hill and Maidstone Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Capel (1 mile west), Five Oak Green (1 mile north), Paddock Wood (1 mile east), Matfield (1 mile south-east) and Whetsted (1 mile north-east). A short drive away, we cover Maidstone (10 miles north-east), Sevenoaks (11 miles north-west), Royal Tunbridge Wells (5 miles south-west), Tonbridge (4 miles north-west), Kings Hill (7 miles north) and Foley Park (11 miles north-east).

Near you in Colt's Hill

Recent enquiries here include premises near The Dovecote Inn, Foal Hurst Wood and Mascalls School. Colt's Hill’s nearest station is Paddock Wood station, roughly 1.5 miles north-east. Nearby you’ll also find Tonbridge Castle (4.1 miles north-west) and The Hop Farm Museum (2.3 miles north-east). Open spaces near Colt's Hill include Barden Lake and Tudeley Woods RSPB reserve.

Map of Colt's Hill © OpenStreetMap contributors

Different surfaces, different methods

Coping and flashing joints

Coping and flashing joints are included where sealant is the specified fix. They sit in the most exposed positions on the building.

Perimeter joints at frames and structure

Where framed systems such as shopfronts meet the building structure, there is a perimeter joint to seal. Our work is that perimeter joint, not the framing or glazing itself.

Looking after the joints

Cleaning and maintenance staff play a part too. Share these points with them:

  • Share access with other external trades
  • Check the asbestos register before old mastic is disturbed
  • Brief window cleaners about newly sealed joints
  • Clear debris that holds water against joints

Record the sealant type and date on the building file. It helps when matching repairs or planning the next reseal without guesswork.

Use each reseal to correct the joint: the right width, backing rod and a sealant with enough movement capability. Repeating a faulty detail just repeats the failure.

Accreditations

Trusted. Accredited. Insured.