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

Facade Sealing contractors in Fratton

Work needed on a facade joint in Fratton? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Air leaks through failed facade joints
  • Water coming in around window frames
  • Perimeter sealant that has split or peeled away
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing across Fratton

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

Owners, agents and contractors

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Fratton can sit alongside others in a wider programme across Portsmouth.

Facade sealing in Fratton, done properly

We seal window and door perimeters, cladding panel joints, external facade joints and perimeter joints where frames meet the structure for clients around Fratton. Where sealant is the specified fix, we also take on coping and flashing joints. The enquiries we see most involve weathered facade joints that have lost their grip and damp patches beside frames after rain, across coping and flashing joints, shopfront frames and perimeter joints where frames meet the structure. One point of contact handles commercial sealant work in Fratton from the first photos to the final walk-round, whether it’s one building or several.

Around places like Fratton, a lot of construction is the conversion of older buildings, and the sealant at those junctions has to cope with two materials that move differently.

Our workmanship is guaranteed for 12 months, in Fratton as everywhere else we work. If our installation lets you down in that time, we return and fix it.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Fratton (PO1, PO4, PO3)
Wider area
Portsmouth
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026

Questions about Fratton

Is Fratton too far out for you?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Can being near the sea in Fratton affect the sealant we need?

It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

When is resealing likely to be due?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.

How soon can the area be used again?

Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.

How is access to upper-level joints handled?

That varies with the building and the access on offer. When you speak to us on 01277 525 020 or send photos by email, describe the access.

Will you just go over the old 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.

Are you fully insured?

Yes. We are fully insured, and the certificate can go with your quote.

Different surfaces, different methods

Precast concrete panels

Joints between precast panels carry real movement. A sealant of the right movement class goes in over backing rod.

Cladding panel joints

Panel joints on cladding and rainscreen systems take movement every day. We use a product rated for the movement and suited to the panel surface, often a low-modulus silicone or hybrid.

From enquiry to sign-off

Site rules come first: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. Work in places the size of Fratton is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.

  1. We look at the joints, the drawings and the access before pricing.
  2. Failed sealant is cut out along its full length.
  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

  • Tell staff and tenants when we’ll be in
  • Confirm the product named in the specification
  • Point out parking and an unloading spot

Quotes

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a quick quote

Advice

What sets the cost

Before we quote, we look at:

  • How accessible the joints are
  • Which sealant the job calls for
  • Site requirements such as inductions and permits
  • Travel to remote or island sites

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.

Details that help us quote

Diagnosis starts before we arrive. Tell us:

  • The type of building and who uses it
  • Approximate linear metres or a joint schedule
  • Any specification or named product
  • The postcode of the building

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call 01277 525 020 or email the details over with what you know.

Why it’s worth doing now in Fratton

Failed joints let in more than water: occupants notice draughts and cold spots around windows. Resealing deals with the draught as well as the leak. For buildings in places like Fratton, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Why us?

  • Colours chosen to suit frames, cladding or finishes where possible
  • Colour options checked against the specified product
  • Products installed to the manufacturer’s instructions
  • Coloured sealants to suit the setting, where available

Read our cost guide or our accreditations.

When it isn’t the sealant

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Installing or repairing glazing systems
  • Arranging specialist high-level access, which is planned with the client
  • Water getting in through cracked render or porous masonry

Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we’ll tell you honestly.

Where we work in Fratton

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

Building and refurbishing in Fratton

Fratton lies within about 2 miles of the sea. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, and the sealant, primer and backing need choosing with that in mind. Fratton is about 64 miles from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme.

Further education sites such as Portsmouth College (1.3 miles north-east of Fratton) are extended and refurbished from time to time, with mastic often programmed into the summer break. On a healthcare site such as St James Hospital, 1.2 miles east of Fratton, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. On a campus such as University of Portsmouth, 0.5 miles south of Fratton, new teaching buildings and residences are usually built and refurbished around the academic year.

Fratton is about 1 mile south-east of Portsmouth, in Portsmouth. Anywhere in PO1, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Our Portsmouth coverage takes in 19 places, large and small.

Postcode districts covered here: PO1, PO4 and PO3. Buildings on Renny Road, Clive Road and Union Road are within our area. With the A288 nearby, Fratton is easy to get to with materials and equipment. Close to Fratton, our area also takes in Kingston (1 mile north-east), Portsmouth (1 mile north-west), Landport (1 mile west), Baffins (1 mile north-east) and Copnor (1 mile north-east). Bigger towns within reach include Wymering (3 miles north), Paulsgrove (3 miles north), Cosham (3 miles north), Drayton (3 miles north) and Farlington (4 miles north-east).

Landmarks near Fratton

In Fratton, that means premises near The Portsmouth Academy, Alexandra Park and St Edmund's Catholic School, among other places. There’s a railway station in Fratton itself: Fratton station. Other landmarks nearby include St Mary's Hospital (less than half a mile east) and Charles Dickens Birthplace Museum (0.8 miles north-west). The countryside around Fratton includes Milton Locks and Portsdown Hill.

Map of Fratton © OpenStreetMap contributors
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