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

Coloured Sealant contractors in Wherwell

Commercial sealant work in Wherwell for contractors, FMs and building owners: coloured and colour-matched sealant for visible joints, with a fixed quote first.

  • Untidy coloured beads with ragged edges
  • Failed coloured sealant that has split or peeled
  • Dirty, discoloured joints in public areas
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Coloured sealant for businesses in Wherwell

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

Wherwell: questions and answers

Is Wherwell off your patch?

No. Small places get the same service as large ones. London and every South East county are within our area. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Do you offer colour-matched sealant for buildings in Wherwell?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. Send colour references or photographs and we will confirm what’s available for the product.

How much does the work cost?

That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote.

Do you seal on top of existing sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

What site paperwork can you supply?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.

How do you deal with asbestos in old sealant?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.

When can the area be used after sealing?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Coloured sealant in Wherwell, done properly

Architects, designers and brand teams often specify the sealant colour as carefully as the finishes around it. Standard sealant ranges cover many colours, and we’ll confirm the colours available for the specified product at quote stage. We don’t promise an exact custom match, but we’ll show you the closest options. Most enquiries involve old colour-matched joints lifting at the edges and standard-colour sealant spoiling a high-end finish, on hotel bathrooms and public areas, shop-fit joinery and counters and powder-coated and anodised frames. Looking for mastic applicators who cover Wherwell? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.

In and around smaller places such as Wherwell, the commercial buildings we’re asked about are often pubs, shops, village halls and barns converted to offices. Kitchens, toilets and window frames in all of them need resealing sooner or later.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Where
Wherwell (SP11)
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 beside their liveried vans in front of an office building

What we are called out for in Wherwell

Failed sealant still has to be dealt with, whatever its colour: splits, adhesion loss and hardening all happen. We cut out and reseal in the agreed colour.

Any of the following is a good reason to get the joints checked over:

  • Hotel refurbishments with a set colour scheme
  • Discoloured joints on a visible elevation
  • Colour changes after a rebrand or refit
  • White or grey sealant that clashes with the finish

Premises within reach of Andover station, 3.7 miles north-west of Wherwell, often have busy frontages where joints are seen by everyone passing.

Comparing quotes

  • What the guarantee covers, and for how long
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Proof of insurance
  • How the joint faces will be prepared and primed

Choosing a commercial sealant contractor

Looking after the joints

For the best life from the joints:

  • Avoid piecemeal repairs on coloured joints
  • Keep harsh solvents away from visible joints
  • Put the colour reference on the finishes schedule
  • Use one colour standard across multi-site work

Include coloured sealant in planned building checks. Watch for cracks, peeling or discolouration and deal with problems early.

Use one product and colour reference across a building or brand. It keeps repairs and new sites consistent.

When it isn’t the sealant

Not every problem is a sealant problem, and we are upfront when that’s the case. These need a different solution:

  • Overpainting a joint that needs a non-paintable product
  • A guaranteed perfect match to every finish
  • Colour variation across natural stone or brick that no single shade can match

Not sure which it is? You can call 01277 525 020 or send photos by email and we will tell you honestly.

What we seal

  • Shop-fit joinery and counters
  • Hotel bathrooms and public areas
  • Natural stone and brick
  • Powder-coated and anodised frames
  • Office fit-out finishes
  • Cladding panels

Leave it or put it right?

A standard colour is quicker to source, though not always right. On visible work, the small extra effort of a colour from the product’s range pays off at handover. Around Wherwell, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

There’s no price list, since every building and every scope is different. Call for a quote.

Why choose Mastic Doctor in Wherwell

  • 12 months’ guarantee on every job
  • Commercial sealant work since 2005
  • CHAS accredited contractor
  • Clear, fixed quotes

See our cost guide and our accreditations.

Building owners, agents and FMs in Wherwell

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Wherwell. Several sites can go on one quote, which keeps the paperwork simple.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Wherwell can form part of a wider programme across Hampshire.

What Wherwell’s businesses ask us to seal

Wherwell sits in one of the drier corners of the country, the South East. Even so, outside sealing waits for a dry joint, and cold, damp mornings can delay it. Wherwell is about 63 miles from central London. The commuter belt holds a great many offices, retail parks and business parks. Firms with branches across the South East can use one contractor for every site.

Trade counters and showrooms on estates such as Harewood Forest Industrial Estate (to the north-east of Wherwell) need neat joints where clients see them.

Wherwell is about 3 miles south-east of Andover, in Hampshire. Anywhere in SP11, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Our Hampshire coverage takes in 723 places, from busy centres to rural villages. For work in that direction, see our Southampton page, about 17 miles away.

Commercial sites across SP11 are covered. Among the streets we cover are High Street, Fair Piece and Beech Grove, and sites on any of them can send details for a fixed quote. Close to Wherwell, our area also takes in Wherwell Wood (1 mile north-west), Cottonworth (1 mile south-west), Chilbolton (1 mile south), Fullerton (1 mile south-west) and South Harewood (1 mile north-east). Bigger towns within reach include Winchester (9 miles south-east), Eastleigh (14 miles south), Andover (3 miles north-west), Chandler's Ford (13 miles south), Romsey (12 miles south) and Hyde (9 miles south-east).

What’s near Wherwell

Locally, jobs take us to sites close to White Lion Public House and Longstock Park, among other places. The nearest railway station is Andover station, roughly 3.7 miles north-west of the centre. Other landmarks nearby include Andover Museum (3.3 miles north-west) and Andover War Memorial Hospital (4 miles north-west). For a walk, there’s Mill Lake and Anton Lakes.

Map of Wherwell © OpenStreetMap contributors

On site: what to expect

Occupied buildings need a little choreography. 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. Rural sites near Wherwell may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. First we agree which sealant type the joint needs.
  2. Your RAL reference, sample or photo is checked against that product’s colours.
  3. You approve the colour, on site if it’s critical.
  4. The existing bead comes out, then faces are cleaned and backed.
  5. We mask, seal and tool to a clean line.
  6. We remove the masking and walk the finished joints with you.

What we need from you

  • Warn occupants and staff about the work
  • Point out any areas we must not close
  • For older buildings, check the asbestos register before work

Ask for a quote

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.

Get a price

Related advice

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