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

Mastic contractors in Dunbridge

Mastic packages for new-build and refurbishment projects across Dunbridge, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Bath and shower joints scraped during the final clean
  • Early adhesion failures on new external joints
  • Missed perimeter joints on a new elevation
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Construction mastic for Dunbridge sites

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

Construction mastic for commercial buildings in Dunbridge

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. Splitting those between trades often leaves gaps in responsibility. If you have snag items on joints that need redoing before handover and frame perimeters left unsealed or poorly sealed, we can put it right, whatever the surface. A single leaking joint is often how a building in Dunbridge first comes to us: we look at the rest while we are there and tell you what we find.

Conversions of older rural buildings near smaller places such as Dunbridge bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Place
Dunbridge (SO51)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Quoting for work in Dunbridge

A fixed quote reflects the actual work. It allows for:

  • Which sealant the job calls for
  • The size and state of each joint
  • Access and working height
  • How much there is to seal

A quote for mastic packages depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.

What we need to price the job

For an accurate fixed quote, we need a clear picture of the site. Send us:

  • Rough lengths or quantities, or drawings if you have them
  • Whether the building will be occupied during the work
  • Specification clauses that apply
  • The postcode of the building

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

On site: what to expect

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme, and our waste is bagged and taken away as we go. If others near Dunbridge need work, visits can be combined. A fixed quote is given before anything starts.

  1. First we take quantities off the drawings and read through the specification.
  2. A fixed quote sets out the scope, the products and the sequence.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. Areas are sealed plot by plot or floor by floor as the trades hand them over.
  5. Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
  6. Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.

Getting the site ready

  • Clear stock, furniture or equipment away from the joints
  • Let building users know which areas are affected
  • Tell us what induction or permit system the site runs

Quotes

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.

Get a quick quote

Advice

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Approving fire stopping as compliant
  • Joint design decisions that belong to the architect or engineer
  • Frames fitted out of tolerance

If in doubt, give us a call on 01277 525 020 or email a schedule or drawings and we will say what we think before you book.

Where we work in Dunbridge

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

What happens if it’s left?

Sealing over damaged or contaminated new joints might save a day, but it rarely lasts. New sealant laid on old or dirty sealant has nothing to bond to. Damaged joints are removed and resealed from clean faces. For buildings around smaller places like Dunbridge, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

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

Why appoint us

  • Clear, fixed quotes
  • Sealing commercial buildings since 2005
  • Matching to RAL references, product permitting
  • 12-month guarantee on workmanship

Read what affects the cost and how we’re accredited.

Commercial clients in Dunbridge

CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Dunbridge can form part of a wider programme.

Keeping the joints sound

After handover, these steps help:

  • Put any product change through the designer first
  • Keep scrapers and abrasive pads off new beads
  • Don’t force external sealing on a damp or frosty day
  • Ask installers to correct oversized gaps first

After we have sealed an area, it helps to keep other trades from damaging the joints. Fresh sealant needs its cure time before it’s cleaned, painted near or knocked.

Snag items left to the last week put handover at risk. A planned close-out through each area as it completes keeps the list short.

Mastic packages on Dunbridge sites

Dunbridge lies roughly 70 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and each scheme needs its mastic sealed to programme. The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, so external mastic is timed for workable conditions and agreed with the site manager.

With historic properties like Mottisfont Abbey (to the north-east of Dunbridge) in the area, refurbishment work often meets old masonry that needs compatible sealants. Hospital estates such as Romsey Community Hospital, 3.9 miles to the south-east of Dunbridge, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. New units and refits on sites such as Home Farm Business Centre, 2.1 miles north-west of Dunbridge, need their panel and perimeter joints sealed to the specification.

Dunbridge is about 4 miles north-west of Romsey, in Hampshire. If you are looking for construction mastic in Dunbridge, we can help. 723 places across Hampshire fall within our area, Dunbridge among them. Sites around Southampton have their own page, roughly 10 miles from Dunbridge.

Anyone looking for construction mastic in SO51 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Nearby places we also cover include Mottisfont (1 mile north-east), Kimbridge (1 mile south-east), Stonymarsh (1 mile north-east), Carter's Clay (1 mile south-west) and Lockerley (1 mile west). A short drive away, we cover Winchester (10 miles east), Eastleigh (10 miles south-east), Andover (13 miles north), Totton (8 miles south), Chandler's Ford (8 miles south-east) and Hedge End (13 miles south-east).

Near you in Dunbridge

Around Dunbridge, our work takes us to commercial buildings near The Bear And Ragged Staff Public House. Dunbridge has its own railway station: Mottisfont & Dunbridge station. Nearby you’ll also find Romsey Community Hospital (3.9 miles south-east) and King Johns House (3.5 miles south-east).

Map of Dunbridge © OpenStreetMap contributors

Questions about Dunbridge

Is a smaller place like Dunbridge outside your area?

Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Is a hospital such as Romsey Community Hospital somewhere you can work?

Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.

Can you work while the building is occupied?

Typically, yes. Phased work can be planned so areas stay in use, with each area protected and signed.

Do you do internal caulk as well as external mastic?

Inside and out: frame perimeters, movement joints, caulk where called for, sanitary and kitchens in one fixed quote.

Can weather delay the job?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Does weather affect external mastic work?

Outside, the joint has to be dry and the temperature within the product’s limits. Damp, frost or condensation on frames can stop work so we usually switch to internal work when that happens.

Do you offer coloured sealant?

That depends on the product specified. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.

Accreditations

Trusted. Accredited. Insured.