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

Facade and window perimeter sealing in Compton, Hampshire

Facade joint and window perimeter sealing on commercial buildings in Compton. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Draughts around frames and panels
  • Perimeter joints where frames meet the structure
  • Previous reseals run over old sealant
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Facade sealing in Compton

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

About our facade sealing in Compton

Some clients need every window on a block resealed; others need a few leaking frames sorted. Either way, the method is the same: old sealant out, faces cleaned, depth set and a new bead tooled in. Each job carries our 12-month guarantee. We work on window and door perimeters, shopfront frames and perimeter joints where frames meet the structure, and the failures we’re asked to look at most are facade joints cracked through the middle and damp patches beside frames after rain. Most enquiries from Compton start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.

Sites around smaller places like Compton can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Send drawings or photographs and the programme and we’ll quote to suit.

A 12-month guarantee applies to all our work. Should something we installed fail, phone 01277 525 020 or send photos by email and we’ll come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Compton (SO21)
Region
Hampshire
Guarantee
12 months on every job
Quote
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

Owners, agents and contractors

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.

Your questions answered

Can you work around term dates at a campus such as University of Winchester?

Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Is hospital work, at somewhere like Wessex Hospital, something you do?

Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Do you seal on top of existing sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.

How much does the work cost?

That depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.

Can you find out why a window is leaking?

Yes. We look at the perimeter sealant and tell you whether it has failed before quoting. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, let us know and we will send them with the quote.

Can you work to our specification?

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

Cost factors for facade joints

Your fixed quote is built from the real scope. It allows for:

  • How much there is to seal
  • Location, for remote and island sites
  • The site’s rules and procedures
  • How much existing material needs removing

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

What to include in your enquiry

Good information means a firmer quote. Helpful details to send:

  • Access details, including height
  • Your programme or deadline
  • The asbestos register, for older buildings
  • Drawings or a marked-up plan, if available

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to call 01277 525 020 or send details through our quote form.

Leave it or put it right?

Open facade joints also let air and dirt through: occupants notice draughts and cold spots around windows. Resealing deals with the draught as well as the leak. Older rural buildings around Compton move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

Why us?

  • Sealing commercial buildings since 2005
  • Failed material removed, not covered up
  • CHAS accredited
  • RAL and finish matching where the product range allows

Read our cost guide or our accreditations.

When it isn’t the sealant

A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be any of the following:

  • Leaks from roofs, gutters or failed flashings rather than sealant joints
  • Installing or repairing glazing systems
  • Damaged frames that need replacing

If you’re not sure, just phone 01277 525 020 or use the quote form and we will give you a straight answer.

Joints and surfaces we work on

  • Window and door perimeters
  • Cladding panel joints
  • Shopfront frames
  • Stone and brick facade joints
  • Coping and flashing joints
  • Perimeter joints where frames meet the structure

Facade sealing around Compton: what changes locally

Compton lies roughly 63 miles out from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and main contractors there need mastic that keeps to the programme. Compton is in the South East, one of the UK’s drier regions. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team.

When a school such as Compton All Saints Church of England Primary School is extended or refurbished, the mastic package is often squeezed into the holidays. On a campus such as University of Winchester, 2.7 miles to the north of Compton, new teaching buildings and residences are usually built and refurbished around the academic year. For a contractor working at a hospital such as Wessex Hospital, which lies south-west of Compton, perimeter and facade sealing is planned around patients and deliveries.

Compton is about 3 miles south of Winchester, in Hampshire. Across the SO21 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Compton is one of 723 places in Hampshire on our list for facade joints. Our Southampton page has more on work in that area, about 8 miles away.

We take on facade joints across the SO21 postcode area, whatever the building. If your site is on Field Way, Clease Way and Cliff Way or close by, we can quote for facade joints. Sites close to Compton are covered too, including South Down (1 mile south), Shawford (1 mile east), Otterbourne (1 mile south), Twyford (1 mile east) and Oliver's Battery (2 miles north). Nearby towns on our patch include Winchester (3 miles north), Eastleigh (4 miles south), Fareham (13 miles south-east), Andover (14 miles north-west), Totton (10 miles south-west) and Chandler's Ford (3 miles south-west).

What’s near Compton

Recent enquiries here include premises near The Bridge Inn, Thornden School and St. Cross Park. For rail, the closest station is Shawford station, roughly 0.5 miles east of the centre. Well-known places in the area include Balfour Museum of Hampshire Red Cross History (2.4 miles north) and Royal Hampshire County Hospital (2.8 miles north). For a walk, there’s Shawford Down and Twyford Down.

Map of Compton © OpenStreetMap contributors

Our process

Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. For a building around Compton, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. Access, site rules and timing are settled with the client up front.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. Once signed off, the work carries our 12-month guarantee.

Getting the site ready

  • Tell us which areas need to stay in use
  • Warn occupants and staff about the work
  • Send any specification or drawings in advance

Ask for a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Get a price

Read more

Site staff or a sealant specialist?

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Accreditations

Trusted. Accredited. Insured.