Construction and new-build mastic in Firgo, Hampshire
Mastic packages for new-build and refurbishment projects across Firgo, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Sanitary sealant damaged by following trades
- Internal caulk splitting as the building dries out
- New external sealant already peeling away
Construction mastic across Firgo
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Construction mastic in Firgo
Site managers want applicators who turn up with the right cards and paperwork. We’re a Constructionline member and CHAS accredited, and every applicator holds a CSCS card. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. Site teams most often ask us about new external sealant already peeling away and inconsistent sealant finishes from plot to plot, across window and door perimeters, internal decorators’ caulk and brick and block movement joints. Most enquiries from Firgo start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Construction in and around smaller places such as Firgo is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
Work we carry out in Hampshire comes with a 12-month guarantee. If an installation problem shows up, call the office on 01277 525 020 or email the details over and we’ll arrange a return visit.
- Where
- Firgo (RG28)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
When something else is needed
Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:
- Approving fire stopping as compliant
- Oversized gaps that need packing or adjustment by others
- Damage to finishes by other trades after we have sealed
If you are not sure, just ring 01277 525 020 or email the details over and we’ll give you a straight answer before you book.
Where we work in Firgo
- Sanitary and kitchen joints
- Cladding and panel joints
- Internal decorators’ caulk
- Brick and block movement joints
- Window and door perimeters
- Floor and skirting junctions
Site staff or a sealant specialist?
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
On site: what to expect
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then handed back before we move to the next. Rural sites near Firgo may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We price from the drawings, specification and programme you send.
- A fixed quote sets out the scope, the products and the sequence.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
What we need from you
- Clear stock, furniture or equipment away from the joints
- Explain the parking and delivery arrangements
- Share your working hours and any access restrictions
Get a fixed quote
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, phone 01277 525 020 or email us.
Read more
Common problems we fix in Firgo
Value-engineered products sometimes end up in the wrong joints. A general-purpose silicone on a facade or a caulk in a wet area won’t perform like the specified product. We use what’s specified, and any substitute goes to you for acceptance.
What tends to prompt an enquiry:
- Existing joints on a refurb that need cutting out and resealing
- Oversized or tapered gaps around new frames
- Caulk cracking where joints are moving more than expected
- A mastic package split between trades with no clear owner
For contractors at a school such as Testbourne Community School, sealing has to be finished before term starts.
What your quote should include
- Who will actually carry out the work
- Is the sealant right for the movement and the substrate?
- How the joint faces will be prepared and primed
- How joint depth will be controlled
After the work
A few simple habits keep the new joints working:
- Ask cleaners to use soft cloths around fresh sealant
- Allow flexibility for external sealing in damp or cold weather
- Ask for joint and product checks before the package is urgent
- Protect sealed areas from following trades
Expect some settlement in the first months. Flexible sealants in the right joints handle normal movement, but caulk in a joint that moves more than expected may crack. If that happens, let us know.
One unsealed frame can let water into finished internal areas. That typically means redoing finishes in a completed area. A check of every frame before decorators start is worth the time.
New build and refits around Firgo
Firgo lies roughly 58 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, so mastic packages have to keep pace with busy programmes. The South East is one of the drier parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so we time external mastic for dry faces and agree it with the site team.
When units on a site such as Ardglen Industrial Estate, 2.1 miles north of Firgo, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Firgo is about 6 miles east of Andover, in Hampshire. Firgo sits inside our coverage and the rest of Hampshire, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 723 places across Hampshire fall within our area, including Firgo. We also cover Southampton, some 20 miles away.
If you need construction mastic in RG28, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Just outside Firgo, we also work in Hurstbourne Priors (2 miles north-west), Whitchurch (2 miles north), Wells-in-the-Field (2 miles north-east), Freefolk (3 miles north-east) and Cole Henley (4 miles north). A short drive away, we cover Basingstoke (11 miles north-east), Winchester (10 miles south), Andover (6 miles west), Chandler's Ford (15 miles south), Tadley (13 miles north-east) and Hyde (9 miles south).
Around Firgo
Firgo’s nearest station is Whitchurch (Hampshire) station, roughly 2.4 miles north of the centre.
Also near Firgo
What else we do in Firgo
Your questions answered
Is a smaller place like Firgo outside your area?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.
Can the mastic package for our job in Firgo follow the site programme?
Yes. The mastic is planned around your key stages. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Are you insured?
Yes. Mastic Doctor is fully insured, public liability included.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
What about RAMS and site documents?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
What does a mastic package typically include?
The scope comes from the specification and drawings, but most packages include frame perimeters, sanitary and kitchen joints, caulking where specified and a snagging pass.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
Owners, agents and contractors
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first, with CSCS-carded applicators on site.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, which keeps the paperwork simple.