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

Facade Sealing in Old Tree

Facade joint and window perimeter sealing on commercial buildings throughout Old Tree and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Unsightly perimeter sealant on a visible elevation
  • Draughts around frames and panels
  • Sealant pulling away from frames or panels
1
Send details
Drawings, photos, a joint schedule or a site visit.
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.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Facade sealing for Old Tree sites

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

Why act early in Old Tree

Every shower drives water through a split perimeter bead. The damage builds out of sight: wet linings, rusting fixings, staining and spoiled finishes. Resealing now costs less than repairing interiors later. One visit to deal with every failing joint makes more sense than several trips to a place like Old Tree. Send photographs of each area and we’ll quote for the lot.

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why us?

  • Public liability insurance in place
  • Colour options checked against the specified product
  • Joints cleaned back to sound surfaces
  • Over 20 years of commercial sealing

Take a look at what affects the cost or our accreditations and insurance.

Facade sealing in Old Tree, done properly

Access is part of every facade job, and we plan it with you before quoting. Let us know what access exists or is planned, and any site rules we need to work around. We work on shopfront frames, perimeter joints where frames meet the structure and cladding panel joints, and the usual reasons a site gets in touch are discoloured or dirty facade joints and hard, chalky sealant that no longer flexes. A specialist sealant contractor works differently from a general builder: on jobs in Old Tree, preparation and product choice get the time they need.

For a site near Old Tree, the mastic visit is planned so the right sealants, primers and backing rod are on hand. Send drawings or photos and the programme and we’ll quote to suit.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Location
Old Tree (CT3)
Region
Kent
Cover
A 12-month guarantee
Price
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How a job runs

Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. If others near Old Tree need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. Access, site rules and timing are settled with the client up front.
  2. We only seal when joints are dry and within the product’s temperature range.
  3. Each joint is cut out and the edges inspected.
  4. Faces are cleaned, primed where needed and backed.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. We hand over with our 12-month workmanship guarantee.

What we need from you

  • Move anything stored against the joints
  • For older buildings, check the asbestos register before work
  • Explain the parking and delivery arrangements

Quotes

For a fixed quote, speak to us on 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. Our quote form is another easy route.

Ask for a quote

Advice

Looking after the joints

After handover, a little attention goes a long way:

  • Record the product and colour used on each elevation
  • Combine resealing with other works that need access
  • Ask about asbestos in pre-2000 mastic
  • Avoid harsh cleaners on facade sealant

Following storms, look inside for damp or staining near frames. An early report usually means a small reseal rather than a bigger repair.

Use each reseal to correct the joint: the right width, backing rod and a sealant with enough movement capability. A well-designed joint lasts longer than a like-for-like copy of a failed one.

When to call us in Old Tree

Overlaying old sealant is a common shortcut that fails quickly. Fresh silicone won’t stick to cured silicone, and the patch soon lifts.

It’s worth sending us details if you spot any of the following:

  • Sealant pulling away from frames or panels
  • Leaks at window and door perimeters
  • Cladding panel joints that have opened up
  • Discoloured or dirty facade joints

For contractors refurbishing units at places like Chislet Business Park, which lies south of Old Tree, the mastic covers cladding panels, roller-door and window perimeters.

What your quote should include

  • Whether old or failed sealant will be cut out, not overlaid
  • Is the sealant right for the movement and the substrate?
  • Will RAMS and insurance details be available?
  • Whether primer will be used where the manufacturer specifies it

Questions to ask before you appoint anyone

Common questions from Old Tree clients

Is hospital work, at somewhere like Queen Victoria Memorial Hospital, something you do?

Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.

Can being near the sea in Old Tree affect the sealant we need?

It can. Coastal exposure works external joints harder than inland weather. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Is it okay to overlay old mastic?

No. Overlaying is a shortcut that peels away quickly. We remove the failed sealant, clean the faces, set the depth and reseal.

Do you work to architects’ specifications?

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

Are you insured?

Yes. Mastic Doctor is fully insured, public liability included.

Do you install glazing systems?

No. That work needs a glazing specialist. We reseal window perimeters, panel joints and frame-to-structure perimeters.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, tell us and we will confirm them with the quote.

What the job involves on each surface

Precast concrete panels

Joints between precast panels carry real movement. A sealant of the right movement class goes in over backing rod, primed where the maker specifies.

Window and door perimeters

Frame-to-wall joints at windows and doors are the facade joints we reseal most. A low-modulus neutral-cure product, chosen for the frame and wall, goes in finished to throw water off the joint.

What affects the price in Old Tree

Before we quote, we look at:

  • Whether old sealant has to be cut out first
  • Backing rod, priming and other preparation
  • Any access equipment needed
  • The product specified

The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Before you send an enquiry

Whether it’s one area or a whole building, these details speed things up:

  • What the building is and how it’s used
  • Anything awkward about access or site hours
  • Any dates the work must fit around
  • The site address and postcode

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to give us a call on 01277 525 020 or email the details over with what you know.

New build and refits around Old Tree

With the shore within about 3 miles, Old Tree counts as a coastal location. Coastal exposure means perimeter and cladding joints work harder than on an inland job, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Old Tree sits in one of the drier corners of the country, the South East. Even so, frost and condensation on steel and glass are common on winter mornings, so we time external mastic for dry faces and agree it with the site team.

For contractors at a school such as Hoath Primary School, sealing has to be finished before term starts. New wings at hospitals like Queen Victoria Memorial Hospital, 2.3 miles to the north-west of Old Tree, bring long runs of window and panel joints to seal.

Old Tree is about 3 miles south-east of Herne Bay, in Kent. If you’re looking for facade sealing in Old Tree, we can help. 931 places across Kent fall within our area, Old Tree among them. Sites around London have their own page, roughly 56 miles from Old Tree.

Anyone looking for facade sealing in CT3 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your building is just outside Old Tree, we cover Maypole (1 mile west), Hoath (1 mile south-west), Millbank (1 mile north-west), Knave's Ash (1 mile south-west) and Hollow Street (1 mile south-east). Bigger towns within reach include Canterbury (6 miles south-west), Margate (10 miles east), Dover (15 miles south), Ramsgate (10 miles east), Broadstairs (11 miles east) and Whitstable (6 miles west).

Near you in Old Tree

We work on buildings around Curtis Wood and Spires Academy and the streets around them. Old Tree’s nearest station is Herne Bay station, roughly 2.9 miles north-west of the centre. A little further out are St Martins Hospital (5.1 miles south-west). For a walk, there’s West Blean and Thornden Woods.

Map of Old Tree © OpenStreetMap contributors
Accreditations

Trusted. Accredited. Insured.