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

Mastic sealing for building owners and managing agents in Kingswood, Buckinghamshire

Mastic sealing in Kingswood, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Old repairs sealed over failed mastic
  • Brittle perimeter mastic across a building
  • Draught complaints from residents or tenants
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
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Mastic sealing for Kingswood sites

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

Why it’s worth doing now in Kingswood

Sealing over failed mastic looks tidy for a while. It won’t grip the old sealant and soon comes away. Cutting out and resealing properly does it once. Converted and older buildings near places like Kingswood tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

Why clients in Kingswood choose us

  • A Constructionline member, so easy to vet
  • Fixed quotes based on photos, drawings or a visit
  • Public liability insurance in place
  • A range of standard colours, depending on the product

Take a look at our cost guide or how we’re accredited.

Mastic sealing in Kingswood, done properly

Managing agents and housing associations normally need paperwork before anyone starts. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are a Constructionline member and CHAS accredited, and we carry public liability insurance. If you are dealing with failed external movement joints and damp patches beside frames, we can help, whatever the surface. A single leaking joint is often how a building in Kingswood first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Rural conversions near places like Kingswood often set modern frames into older stone, flint or brick. The mastic needs to suit an irregular masonry face and the look of the building.

Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Place
Kingswood (HP18)
Wider area
Buckinghamshire
Cover
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

For managing agents and facilities managers

Building owners and managing agents use us on everything from one building to a spread of sites around Kingswood. One quote can cover more than one site, so there’s one set of paperwork to deal with.

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 Kingswood can sit alongside others in a wider programme.

Our process

We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, the joints are worked through in the order agreed with your site contact. For work around Kingswood, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. We inspect each building and record the joints that have failed.
  2. The quote is fixed and split as suits you.
  3. Dates and areas are agreed so occupiers can be told.
  4. Old mastic is removed and the joint faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. Each building is checked and signed off with the 12-month guarantee.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Make sure the joints can be reached
  • Arrange parking or a loading space

Getting a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.

Get a quick quote

Read more

Surface by surface

Window and door perimeters on blocks

Frames vary from uPVC to aluminium and timber, and the product is matched to the frame material and the masonry. Colours are confirmed for the product used.

Tenement and older buildings

Some old mastics in pre-2000 buildings contain asbestos, so we check the asbestos register or survey first. Suspect material is tested before work continues.

What sets the cost

Your fixed quote is built from the real scope. It takes account of:

  • Backing rod, priming and other preparation
  • Location, for remote and island sites
  • How accessible the joints are
  • How much there is to seal

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Sending details for a quote

There’s no need for a formal survey. These details are enough to start:

  • Specification clauses that apply
  • Photos of the joints, close up and from further back
  • Any dates the work must fit around
  • Drawings or a marked-up plan, if available

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.

Questions we are asked in Kingswood

Will you take on work at estates like Lawn Farm Business Centre, close to Kingswood?

Yes, sites like Lawn Farm Business Centre are within our area, along with the rest of Kingswood. Send details of the unit and the work through our quote form for a quick quote.

Is Kingswood too small for you to travel to?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

Do you supply RAMS and insurance details?

Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Do you do block-wide mastic programmes?

Yes. We survey and price each building, then work through them in order starting wherever is most urgent.

How do I request a quote?

You can use the quote form on this site; alternatively, call the office on 01277 525 020 or email drawings and photos. Include photographs or drawings if you have them.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

What if the old mastic contains asbestos?

We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on, and the duty to manage asbestos sits with the dutyholder.

Looking after buildings in and around Kingswood

The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first. At about 46 miles from central London, Kingswood is within reach of the capital. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres; their frame mastic often ages block-wide.

For owners of several units at places like Lawn Farm Business Centre (0.5 miles north-east of Kingswood), one programme can deal with frame and external mastic across the lot. Historic properties like Waddesdon Manor (to the south-east of Kingswood) show the age of some local stock, where frame mastic must suit soft brick or stone. For a school such as Grendon Underwood Combined School, perimeter mastic on windows and doors is a holiday job.

Kingswood is about 7 miles east of Bicester, in Buckinghamshire. If you’re looking for mastic sealing in Kingswood, we can help. We work across 308 places in Buckinghamshire, large and small. We also cover Oxford, around 13 miles from Kingswood.

Commercial sites across HP18 are covered for mastic joints. Buildings on Grendon Road and Kingswood Lane are within our area for mastic joints. Sites close to Kingswood are covered too, including Westcott (2 miles south-east), Quainton (3 miles east), Ashendon (3 miles south), Waddesdon (4 miles south-east) and Wormstone (4 miles south-east). Further afield, our area takes in Aylesbury (8 miles south-east), Buckingham (9 miles north), Elmhurst (9 miles east), Southcourt (9 miles south-east), Princes Risborough (12 miles south-east) and Haydon Hill (7 miles south-east).

Around Kingswood

Locally, jobs take us to sites close to The Akeman Inn. For a walk, there’s Upper Ray Meadows.

Map of Kingswood © OpenStreetMap contributors

Maintenance after handover

Regular inspection catches problems early. In particular:

  • Track which buildings were done and when
  • Avoid piecemeal callouts where you can
  • Start inspections with the most exposed faces
  • Share your contractor requirements early

If paintable sealant was used, decoration can follow once it has cured. Non-paintable silicone shouldn’t be painted over unless told otherwise.

Budgets are easier to plan when sealant is part of planned maintenance. We can quote buildings in priority order and work down the list.

Accreditations

Trusted. Accredited. Insured.