Facade Sealing in Hitchin
We carry out facade joint and window perimeter sealing on commercial buildings in Hitchin and the surrounding area. Send photos or drawings for a fixed quote.
- Gaps between rainscreen or cladding panels
- Facade joints cracked through the middle
- Perimeter joints where frames meet the structure
Facade sealing in Hitchin
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our facade sealing in Hitchin
External sealing depends on the weather more than most trades. The sealant needs a dry joint and temperatures inside the maker’s limits, and cold, damp starts can delay work. We build that into the programme and tell you if the forecast changes the plan. If you have weathered facade joints that have lost their grip and staining on stone next to old sealant, we can help, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Hitchin, preparation and product choice get the time they need.
Developers and contractors working in Hitchin want mastic that keeps pace with the build: sealing as scaffold comes down or as each floor is decorated, and snagging before handover. Tell us the programme and we’ll quote to it.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Location
- Hitchin (SG4, SG5)
- Region
- Hertfordshire
- Guarantee
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Hitchin: questions and answers
Could you schedule work at a campus like North Hertfordshire College - Hitchin Campus for the vacation?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Can the mastic package for our job in Hitchin follow the site programme?
Yes, we work to the programme and the sequence the site sets. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Who decides which product is used?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Do you need to see the site first?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we will arrange a visit.
Do your applicators hold CSCS cards?
Yes. Should the site need card details in advance, let us know and we will send them with the quote.
Do you take on small jobs?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
Is it okay to overlay old mastic?
No. Fresh silicone won’t grip cured silicone, so the existing bead is removed entirely and the faces are cleaned before resealing. Nothing else gives a bond that lasts.
More services for Hitchin
Common problems we fix in Hitchin
Overlaying old sealant is a common shortcut that fails quickly. Cured silicone won’t accept a new silicone bead, and the patch soon lifts.
These are often picked up first by site or facilities staff:
- Damp patches beside frames after rain
- Failed sealant on precast panel joints
- Cold air coming in at window perimeters
- Hard, chalky sealant that no longer flexes
For a contractor at a hotel such as The Sun Hotel (less than half a mile south-west of Hitchin), the mastic often has to be finished before a reopening date.
Questions to ask before you book
- Do they follow the manufacturer’s priming guidance?
- Health and safety accreditation such as CHAS
- Will CSCS-carded applicators be on site?
- Is the sealant right for the movement and the substrate?
General trades versus a specialist
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
Site maintenance staff can often handle a short internal joint. 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.
Looking after the joints
For the best life from the joints:
- Report water ingress at frames as soon as it shows
- Share access with other external trades
- Avoid harsh cleaners on facade sealant
- Clear debris that holds water against joints
Keep a note of which product went in and when. It helps when matching repairs or planning the next reseal across the elevation.
In pre-2000 buildings, check the asbestos register before old sealant is cut out. Older sealants can contain asbestos.
Facades, frames and programmes in Hitchin
Hitchin is about 32 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and each scheme needs its mastic sealed to programme. A 2-mile radius around Hitchin takes in several hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Projects at schools like Hitchin Girls' School work to term dates, so mastic is programmed tightly. For contractors at a college like North Hertfordshire College - Hitchin Campus, which lies north-east of Hitchin, perimeters and internal sealant are timed for the holidays.
Hitchin is about 5 miles north-west of Stevenage, in Hertfordshire. If you are looking for facade sealing in Hitchin, we can help, as we do across Hertfordshire. Our Hertfordshire coverage takes in 371 places, large and small. We also cover London, some 32 miles away.
Commercial sites across SG4 and SG5 are covered. Among the streets we cover are Market Place, London Road and Harrison Close. Access to Hitchin is via the A505 and A600, so getting applicators and materials to site is simple. Nearby places we also cover include Benslow (1 mile east), Poets Estate (1 mile east), Bearton (1 mile north-west), Walsworth (1 mile north-east) and Westmill (1 mile north-west). Bigger towns within reach include Stevenage (5 miles south-east), St Albans (14 miles south), Welwyn Garden City (11 miles south), Harpenden (10 miles south), Hatfield (13 miles south) and Hertford (13 miles south-east). Among the larger centres in Hertfordshire is Hitchin, and we take on facade joints for its commercial and public buildings.
Landmarks near Hitchin
In Hitchin, that means premises near Highbury Infant School and Nursery, Butts Close and Kingshott School. You’ll also find Radcliffe Arms (less than half a mile north-east) and St Mary's Church (less than half a mile south-west). Hitchin has its own railway station: Hitchin station. Nearby you’ll also find Wymondley Castle (1.7 miles east) and Lister Hospital (3.1 miles south-east). The countryside around Hitchin includes Purwell Ninesprings and Markham's Hill.
From enquiry to sign-off
Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. Most work in Hitchin is one building at a time: a school, a unit, an office or a block. We start with your photos, drawings or a site visit, then send a fixed quote.
- First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
- Failed sealant is cut out along its full length.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- The new sealant goes in and is tooled firmly onto both faces.
- We walk the finished joints with you before handing over.
Before we start on site
- Send asbestos survey details if the building is pre-2000
- Point out parking and an unloading spot
- Let building users know which areas are affected
Quotes
To get a fixed quote, give us a call on 01277 525 020 or use the quote form. Our quote form is another easy route.
Related advice
Why act early in Hitchin
Every shower drives water through a split perimeter bead. Behind the frame, that can mean damp plaster, stained ceilings, corroded fixings and damaged insulation. Resealing now costs less than repairing interiors later. Many buildings in towns like Hitchin have been extended or altered, and joints where old meets new tend to fail first. Renewing them before water gets in protects the fabric.
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Why choose Mastic Doctor in Hitchin
- Fully insured, including public liability cover
- One phone line for London, the South East and Scotland
- Colour options checked against the specified product
- Standard and matched colours in many product ranges
See how commercial sealant jobs are priced and how we’re accredited.
How the quote is worked out
These are the things that shape the price:
- Induction, permit and paperwork requirements
- Phasing around occupants
- Backing rod, priming and other preparation
- Distance, for remote addresses
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Before you send an enquiry
A few photos plus some basic facts will normally do. Please tell us:
- Any dates the work must fit around
- The product your specification calls for
- The asbestos register, for older buildings
- The postcode of the building
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call 01277 525 020 or email drawings and photos.