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

Mastic contractors in Bassett

We carry out mastic packages for new-build and refurbishment projects in Bassett. Send details for a fixed quote.

  • Sealant knocked or painted over by other trades
  • Old sealant on a refurbishment that needs stripping before new work
  • Different trades sealing to different standards
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
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Construction mastic for businesses in Bassett

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

Construction mastic for commercial buildings in Bassett

Most of the packages we price run well beyond frames: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. One contractor for all of it keeps the responsibility in one place, and one applicator team gives a consistent finish. We work on internal decorators’ caulk, sanitary and kitchen joints and brick and block movement joints, and the failures we are asked to look at most are old sealant on a refurbishment that needs stripping before new work and missed perimeter joints on a new elevation. One point of contact handles commercial sealant work in Bassett from the first photos to the final walk-round, whether it’s one building or several.

Around places like Bassett, 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, in a colour the planners or architect are happy with.

We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Bassett (SO16, SO17, SO15)
Region
Southampton
Guarantee
12 months on every job
Quotes
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026

Common problems we fix in Bassett

A new building moves while it dries and settles. Materials lose construction moisture and shrink and internal caulk in a moving joint is typically the first to crack. Choosing the right product for each joint reduces that.

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

  • Snag items on joints that need redoing before handover
  • Oversized or tapered gaps around new frames
  • A mastic package split between trades with no clear owner
  • Old sealant on a refurbishment that needs stripping before new work

Hotel extensions and refits, at places such as DoubleTree by Hilton Hotel Southampton, which lies north of Bassett, usually run between busy periods, so the sealing is squeezed into short windows.

What to look for in a quote

  • Which product they’ll use, and why it suits the joint
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Their public liability cover
  • Health and safety accreditation such as CHAS

Questions to ask before you appoint anyone

What we can’t put right

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Designing joint widths or choosing the specification (that sits with the designer)
  • Joints damaged after sign-off by following trades
  • Faulty frames rather than failed sealant

If you are not sure, just call the office on 01277 525 020 or use the quote form and we’ll give you a straight answer.

Surfaces we seal

  • Internal decorators’ caulk
  • Brick and block movement joints
  • Cladding and panel joints
  • Window and door perimeters
  • Floor and skirting junctions
  • Sanitary and kitchen joints

Why act early in Bassett

It helps to bring the mastic subcontractor in before the package is urgent. Early involvement means gaps, products and access are sorted before the programme bites, which avoids last-minute problems. Called in at the end, the same issues surface during handover. Small buildings around Bassett suffer from failed joints as much as large ones. Early resealing avoids the damage that follows a leak.

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Why us?

  • Work to your specification and the manufacturer’s guidance
  • Failed material removed, not covered up
  • One phone line for London, the South East and Scotland
  • Sealing commercial buildings since 2005

Read our cost guide and our accreditations.

From enquiry to sign-off

Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For a job in Bassett, the main thing is a clear picture of the work. You’ll then get a fixed price for the work.

  1. First we look at the scope on site or from drawings.
  2. A fixed quote sets out scope, products and phasing.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. Sealing follows the programme as areas are released.
  5. Problems we find, such as oversized gaps, are raised right away.
  6. Final snagging is completed and the 12-month guarantee applies.

Before we start on site

  • Confirm the product named in the specification
  • For older buildings, check the asbestos register before work
  • Point out parking and an unloading spot

Quotes

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or send photos by email.

Get a quick quote

Related advice

Commercial clients in Bassett

We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

Building and refurbishing in Bassett

Bassett lies within about 3 miles of the sea. Facades and window perimeters on coastal schemes take more wind-driven rain, and salt air nearer the shore, so we check the specified product suits the exposure before the first bead. The South East is one of the drier parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team.

On a campus such as University of Southampton, which lies south-east of Bassett, new teaching buildings and residences are typically built and refurbished around the academic year. New wings at hospitals like Princess Anne Hospital, 1.1 miles to the west of Bassett, bring long runs of window and panel joints to seal.

Bassett is about 2 miles north-west of Southampton, in Southampton. Anywhere in SO16, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 30 places across Southampton fall within our area, Bassett among them.

Postcode districts covered here: SO16, SO17 and SO15. Among the streets we cover are Burgess Road, Pointout Road and Chetwynd Road. If your building is just outside Bassett, we cover Highfield (1 mile south-east), Lordswood (1 mile west), Chilworth (1 mile north), Coxford (1 mile west) and Shirley (2 miles south-west). Further afield, our area takes in Thornhill (4 miles south-east), Harefield (3 miles south-east), Itchen (3 miles south-east), Sholing (4 miles south-east), Woolston (4 miles south-east) and Bitterne (3 miles south-east).

Landmarks near Bassett

In Bassett, that means premises near The Bellemoor pub, Southampton Common and Saint George Catholic Voluntary Aided College Southampton. The closest station to Bassett is Swaythling station, roughly 1.5 miles east. Nearby you’ll also find Netley Castle (4.9 miles south-east) and Foresters Museum & Archive (2.1 miles south). Open spaces near Bassett include Flexford Nature Reserve.

Map of Bassett © OpenStreetMap contributors

Questions we are asked in Bassett

Can you take on a job at a hospital such as Princess Anne Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do you cover business parks and estates near Bassett, such as Shirley Retail Park?

Yes. Our area takes in Bassett and its surroundings, with estates and business parks such as Shirley Retail Park included. A few photos and the unit address let us price the work.

Can you fit around our working hours?

Mention the site’s hours and access windows in your enquiry, and we will plan around them. You can reach the office between 8am and 5pm, Monday to Friday.

Can you work plot by plot or floor by floor?

The programme sets the job. Tell us the sequence and we’ll plan applicators around it.

Can weather delay the job?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

Do you install fire-rated sealant as part of a package?

Fire-rated sealing at service penetrations and linear gaps can be included where specified. Record requirements are confirmed at quote stage.

How long will the new sealant last?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

How the job changes by surface

Fire-rated sealant where specified

Fire-rated sealant is one type of fire-stopping product. Collars, wraps, batts and boards are specified for other services. Tell us what records you need and we will confirm with the quote.

Internal decorators’ caulk

Where the specification calls for it, acrylic decorators’ caulk goes on non-moving internal gaps before painting. It’s paintable and suits gaps that don’t move while moving joints need a flexible sealant.

Accreditations

Trusted. Accredited. Insured.