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

Mastic sealant contractors in Fullerton

Mastic sealing for building owners, managing agents and housing associations throughout Fullerton and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.

  • No planned programme for sealant
  • Window mastic that has split and shrunk
  • Damp patches beside frames
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Mastic sealing across Fullerton

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

Common problems we fix in Fullerton

Buildings move with temperature and moisture, and every joint has to stretch and squeeze with them. A joint that was too narrow, too thin or the wrong product can’t cope and fails early.

Site and facilities staff are often the first to spot these:

  • Cracked, hardened mastic round windows on a block
  • Worn sealant at communal door frames
  • Old repairs sealed over failed mastic
  • Repeated reactive repairs to the same buildings

If you look after a block within reach of Andover station, which lies north of Fullerton, frame and balcony mastic can be renewed on one programme.

Before you book anyone

  • How they’ll work around occupants
  • Is the sealant right for the movement and the substrate?
  • Whether primer will be used where the manufacturer specifies it
  • How the existing material will be dealt with

How to choose a sealant contractor

Mastic sealing for commercial buildings in Fullerton

On a residential block, the work happens around people’s lives. Dates, areas and the order of work are agreed with you in advance so you can let residents know what is happening. Entrances and stairwells are kept in use while we work. Most enquiries involve worn sealant at communal door frames and draughts at frames across a block, on external wall and movement joints, window and door perimeters on blocks and communal entrances and stairwells. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Fullerton is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Rural conversions near places like Fullerton often set modern frames into older stone, flint or brick. Perimeter mastic there has to grip an uneven face and suit the building’s character.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Where
Fullerton (SP11)
Region
Hampshire
Cover
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Different surfaces, different methods

Estate-wide resealing programmes

Using the same products throughout keeps the estate consistent and easier to manage.

Communal areas

Entrance doors, screens and corridor junctions in communal areas all have sealant joints. Fresh joints make shared areas look looked after.

FAQs: Fullerton

Do you take on block-wide or estate-wide mastic work in Fullerton?

Yes, we quote for single buildings and for programmes across several blocks. Send the addresses and photographs and we’ll give a fixed quote.

Do you work for managing agents with blocks near Andover station?

Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.

How many days will you need on site?

We plan the time on site around your programme and access. You will have an expected duration with the quote.

Do you work in Fullerton?

Yes. We cover Fullerton, and you can call the office on 01277 525 020 or email drawings and photos to get started.

When is resealing likely to be due?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

What about access for upper-floor joints?

Access is discussed and agreed before the quote is fixed. Tell us the building height and any access already in place, and we will tell you how we’d approach it.

Is asbestos a concern with old mastic?

Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.

When it isn’t the sealant

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Asbestos-containing sealant, which we don’t remove
  • Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
  • Frames that are rotten, warped or broken

If you are not sure, just call the office on 01277 525 020 or email a schedule or drawings and we will give you a straight answer before you book.

Joints and surfaces we work on

  • Shopfronts below residential blocks
  • Window and door perimeters on blocks
  • Communal kitchens and washrooms
  • Communal entrances and stairwells
  • External wall and movement joints
  • Balcony and threshold joints

Mastic sealing in Fullerton: the local picture

The South East is one of the drier parts of the UK. Outside work still depends on dry joints, while the elevations that take the most sun tend to show hardened mastic first. Fullerton lies roughly 64 miles out from central London. Managed blocks of flats are a big part of commuter-belt property, and window and balcony mastic on them tends to age at the same rate.

Trustees of buildings like Church of St Nicholas can bring frame and external mastic into a planned maintenance list.

Fullerton is about 4 miles south of Andover, in Hampshire. Across the SP11 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Fullerton is one of 723 places in Hampshire on our list for mastic joints. There’s a separate page for Southampton, roughly 16 miles from Fullerton.

If you need mastic sealing in SP11, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Nearby places we also cover include Cottonworth (1 mile north-east), Chilbolton (1 mile east), Leckford (1 mile south), Wherwell (1 mile north-east) and Wherwell Wood (2 miles north). Further afield, our area takes in Winchester (9 miles south-east), Eastleigh (14 miles south), Andover (4 miles north), Chandler's Ford (12 miles south), Romsey (11 miles south) and Hyde (9 miles south-east).

Local landmarks in Fullerton

Locally, jobs take us to sites close to Longstock Park, among other places. For rail, the closest station is Andover station, about 4.3 miles north of the centre. Well-known places in the area include Andover War Memorial Hospital (4.6 miles north). Green spaces nearby include Anton Lakes and Mill Lake.

Map of Fullerton © OpenStreetMap contributors

Diagnose, treat, sign off

On arrival, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work usually takes anything from a day to a few weeks, depending on the number of buildings and joints. For work around Fullerton, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. First we look at the mastic on each building and note what needs replacing.
  2. We send a fixed quote that sets out the joints, the products and the programme.
  3. The programme is fixed with you, including dates you can pass on to residents or tenants.
  4. Old sealant is stripped and each face prepared back to firm material.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

Before we start on site

  • Tell us which areas need to stay in use
  • Tell us your opening times and when work is allowed
  • Let us know about inductions and permits

Ask for a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Get a quick quote

Read more

Doing it in-house

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.

Leave it or put it right?

Replacing mastic before water gets in is a planned job. After water has got in, there may be damp, damaged plaster or decoration to put right too and occupiers notice. For buildings around smaller places like Fullerton, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Why us?

  • Sealing commercial buildings since 2005
  • A Constructionline member, so easy to vet
  • Old sealant cut out, never sealed over
  • Workmanship guaranteed for 12 months

Read what affects the cost or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.