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

Commercial Sealant Contractors in Fratton

Sealant work for offices, shops, hotels and other commercial buildings in Fratton. CHAS accredited and fully insured, with a 12-month guarantee.

  • Hardened, chalky sealant on south-facing or exposed elevations
  • Window and door perimeter joints that have cracked open
  • Wall and floor joints that have lost their seal
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.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Commercial sealant contractors near Fratton

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

Sealant specialists in Fratton

We have applied sealant on commercial sites for over 20 years, and the paperwork side is in order: CHAS accredited, Constructionline member, five million pounds of public liability insurance and CSCS-carded applicators. Let us know which site documents you need and they’ll be confirmed with the quote. We work on movement joints in walls and floors, washrooms and tea points and floor and threshold joints, and the usual reasons a site gets in touch are gaps behind commercial kitchen worktops and sinks and water staining near frames, panels or ceilings. Whether you call it commercial sealant work, mastic application or joint sealing, in Fratton it comes down to the same thing: the right product in a properly prepared joint.

Multi-site clients with buildings in and around Fratton can put several sites on one programme, with one quote format and one point of contact.

Sealant jobs for businesses in a place the size of Fratton are often best grouped: shopfront, washroom, kitchen and any external joints done together. That keeps travel and disruption down.

Whoever the client is, the cover is the same: 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.

Place
Fratton (PO1, PO4, PO3)
Wider area
Portsmouth
Cover
12 months on our workmanship
Price
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Building owners, agents and FMs in Fratton

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.

For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.

Maintenance after handover

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Check joints after other trades have worked nearby
  • Check the asbestos register before anyone disturbs old sealant in an older building
  • Log reseals in the O&M or maintenance records
  • Add sealant to the planned maintenance inspection list

Brief your cleaning team on the joints that have been resealed. Scourers, blades and harsh products shorten a bead’s life.

A failed external joint lets water in every time it rains. Behind a panel or frame, that water can sit unseen for a long time. Catching it at the sealant stage avoids the bigger repair.

General trades versus a specialist

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

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.

What sets the cost

What shapes the price:

  • Quantities, in metres or numbers
  • The size and state of each joint
  • How much existing material needs removing
  • How accessible the joints are

Pricing sealant joints depends on quantities, condition and access. Call for a quote.

What to include in your enquiry

The more we know, the firmer the quote. When you get in touch, include:

  • The type of building and who uses it
  • Specification clauses that apply
  • Drawings or a marked-up plan, if available
  • When you need the work done

A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call 01277 525 020 or email drawings and photos to discuss it first.

Questions about Fratton

Do hotels near Fratton have to close for sealant work?

Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. The plan is built around your bookings.

Will you take on work at estates like The Bridge Shopping Centre, close to Fratton?

Yes. Estates, retail parks and business parks around Fratton, The Bridge Shopping Centre among them, are all within reach. A few photographs and the unit address let us price the work.

Do you work in Fratton?

Yes. We cover Fratton and the rest of Portsmouth, within our coverage of Greater London, South East England and Scotland. For a quote, phone 01277 525 020 or email drawings and photos.

Do you check for asbestos before removing sealant?

It can, on some older buildings. That’s why we ask for the asbestos information first, and stop if a material is suspect until it’s tested. HSE guidance on asbestos is a useful reference.

Does the weather affect the work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.

Can areas stay open during the work?

It’s normal for us to work in occupied buildings. We agree the order of areas, protect what’s nearby and close off only the section we are sealing, until its cure time has passed.

When is resealing likely to be due?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

Working on commercial sites near Fratton

With the shore within about 2 miles, Fratton counts as a coastal location. Buildings near the sea put their external joints through more driven rain, with salt air nearer the beach. Sea-facing elevations are usually where failed joints show first. Fratton is about 64 miles from central London. The South East around the capital has large numbers of business parks, offices and retail centres, especially around the motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact.

Units at retail parks like The Bridge Shopping Centre, under half a mile south-west of Fratton, change hands and get refitted, with new joints at every frontage. Shops and cafés around stations like Fratton station, less than half a mile to the south of Fratton, trade from early, so work is timed around them. In hotels such as Eastfield Hotel, 0.9 miles south-east of Fratton, refurbishments normally mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes.

Fratton is about 1 mile south-east of Portsmouth, in Portsmouth. We cover Fratton, with the same fixed quotes and 12-month guarantee as everywhere else. Fratton is one of 19 places in Portsmouth on our list.

Work on sealant joints is covered throughout PO1, PO4 and PO3. We cover commercial and managed buildings on Renny Road, Clive Road and Union Road. Access to Fratton is via the A288. We also cover 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) for sealant joints. 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).

What’s near Fratton

In Fratton, that means premises near The Portsmouth Academy, Alexandra Park and St Edmund's Catholic School and the streets around them. There’s a railway station in Fratton itself: Fratton station. Other landmarks nearby include St Mary's Hospital (under half a mile east) and Charles Dickens Birthplace Museum (0.8 miles north-west). Not far away are Milton Locks and Portsdown Hill.

Map of Fratton © OpenStreetMap contributors

On site: what to expect

We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. For a job in Fratton, the main thing is a clear picture of the work. A fixed quote follows.

  1. We start with the evidence: photos, drawings or a look on site.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. Completed areas are signed off with you under our 12-month guarantee.

Preparing the site

  • Tell staff and tenants when we will be in
  • Send asbestos survey details if the building is pre-2000
  • Arrange parking or a loading space

Get a fixed quote

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

Ask for a quote

Advice

What happens if it’s left?

Some low prices are low because nothing gets cut out. Sealing over looks tidy at handover, then lifts once the joint starts moving. Our prices always include removal of the failed bead and full joint preparation. A failed joint lets water into a building whatever its size. Early resealing avoids the damage that follows a leak.

The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site rules also count.

Why appoint us

  • Fixed quotes based on photos, drawings or a visit
  • RAL and finish matching where the product range allows
  • Sealing commercial buildings since 2005
  • One phone line for London, the South East and Scotland

See how commercial sealant jobs are priced and our accreditations.

Accreditations

Trusted. Accredited. Insured.