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

Mastic sealant contractors in Aldershot

We carry out mastic sealing for building owners, managing agents and housing associations in Aldershot. Send details for a fixed quote.

  • Complaints coming in block by block
  • Occupiers reporting cold air round windows
  • Mastic failing across several blocks on an estate
1
Send details
Tell us about the site, with photos if you have them.
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.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Mastic sealing for Aldershot sites

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

How we handle mastic sealing in Aldershot

Older blocks and commercial buildings can have mastic that contains asbestos. We check the asbestos register or survey before any old sealant is cut out and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. We work on shopfronts below residential blocks, window and door perimeters on blocks and communal entrances and stairwells, and the usual reasons a site gets in touch are window mastic that has split and shrunk and open joints in brickwork or panels. Searching for sealant specialists in Aldershot? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.

Housing associations in towns like Aldershot often run planned maintenance by estate or by block. Work can move block by block, with you handling resident notices.

Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Where
Aldershot (GU11, GU12)
Wider area
Hampshire
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Looking after the joints

Problems stay small when the joints are checked regularly. Specifically:

  • Include mastic in your cyclical inspections
  • Keep a record of when each building was resealed
  • List the paperwork your organisation requires when you send details
  • Plan resealing building by building rather than complaint by complaint

Include sealant in planned building inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away and record where they are.

Water getting in round frames can damage plaster, decoration and the frames themselves. Early resealing is far simpler than repairs inside.

Common problems we fix in Aldershot

Occasionally the substrate fails, not the sealant, such as crumbling render, brick arrises or frame edges. We will tell you if the joint edges need repairing before resealing.

What tends to prompt an enquiry:

  • Brittle perimeter mastic across a building
  • Draught complaints from residents or tenants
  • Damaged joints in communal entrances and corridors
  • Movement joints with sealant missing

Churches, halls and community buildings such as Church of the Holy Trinity are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.

Questions to ask before you book

  • Their plan for phasing and protecting the area
  • The named product and why it was chosen
  • How the joint faces will be prepared and primed
  • What site paperwork they can supply

How to choose a sealant contractor

Looking after buildings in and around Aldershot

Aldershot is about 34 miles from central London. Managed blocks of flats are a big part of commuter-belt property. The 2 miles around Aldershot include three care or nursing homes. Owners of care premises can bring window and door mastic into a phased programme planned around the home.

Landlords with units on estates such as Westgate Shopping Centre (to the north-west of Aldershot) can bring frame, door and external mastic across several units into one programme. Schools and community buildings such as Talavera Junior School need frame and external mastic kept sound like any building.

Aldershot is about 8 miles west of Guildford, in Hampshire. We cover commercial sites throughout Aldershot, whether it’s a single job or part of a planned programme. Across Hampshire, 723 places are covered, Aldershot among them. For work in that direction, see our Reading page (17 miles or so).

Work on mastic joints is covered throughout GU11 and GU12, whatever the building. If your site is on Station Road, East Station Road and High Street or close by, we can quote for mastic joints. Aldershot sits on or close to the A323 and A325, which helps when planning parking and deliveries for the job. Close to Aldershot, our area also takes in Weybourne (1 mile south-west), Badshot Lea (1 mile south), Heath End (1 mile south-west), Tongham (1 mile south-east) and Hale (2 miles south-west). Further afield, our area takes in Basingstoke (15 miles west), Farnborough (3 miles north), Fleet (4 miles north-west), Alton (11 miles south-west), Yateley (7 miles north-west) and Bordon (10 miles south-west).

Around Aldershot

We work on buildings around All Hallows Catholic School, Prince Consort's Library and Princes Gardens. There’s a railway station in Aldershot itself: Aldershot station. A little further out are Royal Army Dental Corps Historical Museum (1.6 miles north) and Farnham Castle (2.7 miles south-west). Open spaces near Aldershot include Claycart Hill and Rowhill Nature Reserve.

Map of Aldershot © OpenStreetMap contributors

Leave it or put it right?

Resealing ahead of leaks keeps it to a maintenance task. After water has got in, there may be damp, damaged plaster or decoration to put right too and occupiers notice. In a town like Aldershot, a split, stained or mouldy joint is often the first thing visitors notice. Renewing it keeps the building looking cared for.

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

Why clients in Aldershot choose us

  • A range of standard colours, depending on the product
  • Work carried out by CSCS-carded applicators
  • Failed material removed, not covered up
  • Work to your specification and the manufacturer’s guidance

See how commercial sealant jobs are priced or our accreditations and insurance.

Owners, agents and contractors

CHAS accredited and a Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

From enquiry to sign-off

In a busy building, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before we move to the next. For a town like Aldershot, we try to group jobs for the same client into one visit. Tell us when the building is open and we will plan to suit.

  1. First comes a look at the joints and, for older buildings, the asbestos records.
  2. A fixed quote covers the joints, products and order of work.
  3. Failed mastic is removed completely.
  4. The joints are prepared and resealed with the right product.
  5. We finish each building before moving to the next.

Preparing the site

  • Tell us your opening times and when work is allowed
  • Send asbestos survey details if the building is pre-2000
  • Let us know about inductions and permits

Request a quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, give us a call on 01277 525 020 or email drawings and photos.

Ask for a quote

Read more

What the job involves on each surface

Estate-wide resealing programmes

Using the same products throughout keeps the estate consistent.

External movement joints

Joint size and product are matched to the expected movement with the width-to-depth ratio set as the manufacturer advises.

FAQs: Aldershot

Can work in a care setting near Aldershot go ahead while residents are there?

Yes. We work around residents’ routines, a room or two at a time. Tell us about any infection-control or safeguarding requirements and we will work to them.

We manage a building near Aldershot station. Can you help?

Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Send the address, photographs of the elevations and your access arrangements, and we’ll give a fixed quote.

How long does a job like this take?

We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.

What paperwork can you provide?

We are CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

What about access for upper-floor joints?

Every block is different. How upper joints are reached is agreed before work is booked so there are no surprises.

How long do sealant joints last?

There isn’t a single answer, 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.

Do you do block-wide mastic programmes?

Yes. We survey and price each building, then work through them in order, and the programme can start with the worst.

Accreditations

Trusted. Accredited. Insured.