
Alton coloured sealant
Commercial sealant work in Alton for contractors, FMs and building owners: coloured and colour-matched sealant for visible joints, with a fixed quote first.
- Hotel refurbishments with a set colour scheme
- Discoloured joints on a visible elevation
- Smeared sealant on stone or joinery
Coloured sealant across Alton
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Coloured sealant in Alton
Matching to anodised or powder-coated frames is a common request. The frame colour is checked against the sealant’s standard range, and you approve the choice. Where nothing in the range is close enough, a paintable hybrid or PU sealant may be an alternative, if the joint and specification allow. If you’re dealing with joints that need to match a new RAL frame colour and a bead that fights the cladding or frame colour, we can help, whatever the surface. Looking for mastic applicators who cover Alton? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
In towns of Alton’s size, shops and offices often occupy older buildings with later extensions and new shopfronts. Where old meets new there are junctions between brick, render, timber and aluminium, and each needs the right sealant, in a colour that suits the frontage.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

- Where
- Alton (GU34)
- Wider area
- Hampshire
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Our process
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, we take the joints in the sequence agreed with you. Parking and loading for town-centre jobs in Alton are worth mentioning when you send details. Industrial and business units usually have yard or car park space.
- We confirm the product the joint needs before talking about colour.
- We compare your RAL reference or sample with the colours made for that sealant.
- Where colour is critical, a sample bead can be agreed in a discreet spot.
- We remove the existing bead, clean the faces and set the depth.
- We apply the agreed colour and tool it neatly, with masking where the finish needs it.
Before we start on site
- Tell us your opening times and when work is allowed
- Agree which areas must stay open
- Let us know about inductions and permits
Quotes
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.
Advice
Other services in Alton
Commercial clients in Alton
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
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’ll confirm them with the quote.
What sets the cost
The price varies from site to site. Expect it to depend on:
- Phasing around occupants
- How much existing material needs removing
- How much there is to seal
- Any access equipment needed
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.
Before you send an enquiry
Diagnosis starts before we arrive. Tell us:
- Specification clauses that apply
- Any dates the work must fit around
- The type of building and who uses it
- The site address and postcode
Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, phone 01277 525 020 or email the details over.
Common questions from Alton clients
Can you supply sealant in our brand colour for a site in Alton?
Yes. Colour matching to frames, cladding, stone and shop-fit finishes is a regular part of the work. The quote lists the colours the product is made in.
Will our hotel in Alton need to close for the work?
In most cases no closure is needed: we work room by room or floor by floor. Tell us your quiet periods and access windows and we’ll plan around them.
Are you insured?
Yes. Mastic Doctor is fully insured, public liability included.
What will the job cost?
That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote and we will price it properly.
Do you work in Alton?
Yes. Alton is in our area and the rest of Hampshire. To discuss a job, give us a call on 01277 525 020 or email us.
Do you need to see the site first?
Many jobs can be quoted from photographs, drawings or a joint schedule. Where they aren’t, we arrange a site visit.
Are you CHAS accredited?
Yes. We’re CHAS accredited and a Constructionline member.
Shops, offices and hotels in and around Alton
A number of hotels sit less than 2 miles from Alton. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet, and the work can be phased so the rest of the hotel keeps trading. Alton is in the South East, one of the UK’s drier regions. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings.
Occupiers with premises at both Kerridge Industrial Estate and Farringdon Business Park could have the sealant at each handled under one quote. In hotels such as The Crown Hotel, which lies east of Alton, refurbishments usually mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes. If you run a unit on an estate such as Kerridge Industrial Estate (under half a mile north-east of Alton), the trade counter, offices and staff facilities have joints to look after as well as the warehouse.
Alton is about 10 miles south-east of Basingstoke, in Hampshire. Our applicators travel to Alton for work on colour-matched joints. Alton is one of 723 places we cover in Hampshire. We also cover Reading, some 21 miles away.
Postcode districts covered here: GU34. If your site is on High Street, Station Road and Goswell Square or close by, we can quote for colour-matched joints. You’ll find Alton on or near the A339 and B3004, so getting applicators and materials to site is simple. If your building is just outside Alton, we cover Chawton (1 mile south-west), Holybourne (2 miles north-east), Neatham (2 miles north-east), East Worldham (2 miles south-east) and Golden Pot (2 miles north). Nearby towns on our patch include Basingstoke (10 miles north-west), Farnborough (13 miles north-east), Fleet (10 miles north-east), Aldershot (11 miles north-east), Petersfield (10 miles south) and Yateley (14 miles north-east).
What’s near Alton
We work on buildings around Amery Hill School, Treloar School and The 'Baker's Arms' Public House. Alton has its own railway station: Alton station. A little further out are Allen Gallery (less than half a mile east) and Alton Community Hospital (0.9 miles south-west). The countryside around Alton includes Holybourne Hill.
Why it’s worth doing now in Alton
Standard white or grey sealant is cheaper to stock, but it doesn’t always suit the finish. On visible work, the small extra effort of a colour from the product’s range pays off. For businesses and landlords in Alton, a tidy, sound joint also matters for appearance. Renewing it keeps the building looking cared for.
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.
Why appoint us
- CHAS accredited contractor
- Colour options checked against the specified product
- One phone line for London, the South East and Scotland
- Constructionline member
When something else is needed
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Finishes that change colour from one area to another
- Overpainting a joint that needs a non-paintable product
- A colour that never alters with age
If in doubt, give us a call on 01277 525 020 or send details through our quote form and we’ll say what we think before you book.
Joints and surfaces we work on
- Natural stone and brick
- Hotel bathrooms and public areas
- Powder-coated and anodised frames
- Cladding panels
- Shop-fit joinery and counters
- Office fit-out finishes
General trades versus a specialist
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.