Commercial Construction & Fit-Out
Commercial Building Services in Hertfordshire & North London
From office fit-outs and retail shop fit-outs to full commercial refurbishments and planned maintenance — TCM Building & Maintenance delivers every stage of the commercial construction process under one contract.
What Commercial Construction Involves
Commercial construction covers any building work carried out on premises used for business purposes — offices, retail units, restaurants, warehouses, healthcare facilities, and educational buildings. Unlike domestic work, commercial projects operate under a different regulatory framework: the Building Regulations apply in full, CDM 2015 duties are more stringent, and the contractual structure (typically JCT) is more formal.
A commercial fit-out refers specifically to the process of finishing the interior of a commercial space to make it ready for occupation. This ranges from CAT A (basic services and finishes) through to CAT B (full interior completion including partitioning, ceilings, flooring, M&E, data, and furniture). TCM Building & Maintenance manages the entire process — from initial brief and design through to handover and aftercare.
Our Commercial Services
Every commercial service we offer is delivered by our in-house team — structural engineers, architects, M&E contractors, and specialist tradespeople working under a single contract.
Commercial Fit-Outs
Full CAT A and CAT B fit-outs for offices, retail units, restaurants, and hospitality venues. Shell and core through to fully furnished and branded.
Learn moreOffice Fit-Out
Purpose-designed office environments — open-plan, cellular, hybrid, and agile workspaces. Partitioning, suspended ceilings, M&E, data, and AV integration.
Learn moreRetail Shop Fit-Out
Customer-facing retail interiors, shop fronts, display fixtures, point-of-sale environments, and branded fit-outs that drive footfall and conversion.
Learn moreCommercial Refurbishment
Full-scope refurbishments of existing commercial premises — structural alterations, M&E upgrades, redecoration, and compliance works.
Learn moreOffice Refurbishments
Modernisation of existing office spaces — new partitioning, ceiling upgrades, flooring, lighting, and full redecoration with minimal business disruption.
Learn moreCommercial Maintenance
Planned preventative maintenance, reactive repairs, and compliance inspections for commercial landlords, managing agents, and occupiers.
Learn moreSectors We Serve
Our commercial team has experience across a broad range of sectors, each with its own regulatory requirements, programme pressures, and design standards.
Professional Services
Law firms, accountancy practices, financial services, and consulting offices requiring high-specification, brand-aligned workspaces.
Retail & Hospitality
Shops, restaurants, cafés, bars, and hotels — fit-outs that create the right customer experience and meet licensing and building regulations.
Healthcare & Education
GP surgeries, dental practices, clinics, nurseries, and schools — built to specialist regulatory and infection-control standards.
Industrial & Logistics
Warehouses, distribution centres, and light industrial units — mezzanine floors, welfare facilities, and office fit-outs within industrial shells.
Property & Investment
Landlords, developers, and managing agents requiring reliable, cost-effective commercial fit-outs and maintenance programmes.
Leisure & Wellbeing
Gyms, spas, yoga studios, and leisure facilities — specialist fit-outs that combine durability, acoustics, and aesthetic quality.
How We Deliver Commercial Projects
Every commercial project follows a structured five-stage process — from initial brief through to handover and aftercare.
Brief & Survey
We meet with you on site, review existing drawings, and produce a measured survey. We clarify your brief, programme, and budget before any costs are committed.
Design & Specification
Our in-house team produces detailed design drawings and a full specification. We manage any planning applications or building control submissions required.
Fixed-Price Tender
You receive a transparent, itemised fixed-price contract. No hidden preliminaries, no retrospective variations — what we quote is what you pay.
Construction & Programme
A dedicated project manager oversees every trade. Weekly progress reports, site meetings, and a live programme keep you informed throughout.
Handover & Aftercare
Thorough snagging, O&M manuals, warranties, and as-built drawings on handover. We remain available for aftercare and planned maintenance.
Why Businesses Choose TCM
Commercial clients have different requirements from domestic clients — tighter programmes, more complex contracts, and a lower tolerance for disruption. Here is how we address each of those concerns.
Checkatrade Verified
Our commercial work is independently verified on Checkatrade, with a consistent 10/10 rating across 100+ reviews.
Fully Insured
£5 million public liability, employers' liability, and contract works insurance as standard on every commercial project.
In-House Team
Structural engineers, architects, M&E contractors, and specialist trades all employed directly — no subcontractor lottery.
Programme Certainty
We have delivered every commercial project on time over the past three years. Business disruption is minimised by design.
CDM Compliance
We act as Principal Contractor on all notifiable projects, managing the full CDM 2015 duty holder structure on your behalf.
Fixed-Price Contracts
All commercial projects are tendered on a fixed-price JCT Minor Works or Design & Build contract. No budget surprises.
Commercial Compliance & Regulatory Requirements
Commercial construction in England is governed by a more demanding regulatory framework than domestic work. The Building Regulations 2010 apply in full, with particular requirements around fire safety (Part B), structural integrity (Part A), energy efficiency (Part L), and accessibility (Part M). For any fit-out or refurbishment involving a change of use, building control approval is required before works commence.
The Construction (Design and Management) Regulations 2015 (CDM 2015) impose specific duties on commercial projects. Any project lasting more than 30 working days with more than 20 workers simultaneously on site, or exceeding 500 person-days, must be notified to the Health and Safety Executive. TCM Building & Maintenance acts as Principal Contractor on all notifiable projects, managing the Construction Phase Plan, site inductions, and the Health and Safety File.
Read our CDM Regulations guideParts A, B, L, and M compliance managed as standard
Principal Contractor duties on all notifiable projects
Fire risk assessments, compartmentation, and emergency lighting
Part M compliance for public-facing commercial premises
MEES compliance and EPC improvement works
Change of use applications and prior approval managed in-house
Commercial Services — Frequently Asked Questions
Ready to Discuss Your Commercial Project?
Contact our commercial team for a no-obligation consultation and fixed-price quotation. We cover Hertfordshire, North London, and the wider M25 corridor.
Where We Deliver Commercial Building Services
TCM Building & Maintenance is based in Borehamwood and serves Hertfordshire, North London, and the surrounding area. Each location page covers planning authority details, property types, and local considerations specific to that area.
Our home base. Fast response times across the whole town.
Serving Radlett's conservation areas and Green Belt properties.
Covering Bushey, Bushey Heath, and the surrounding Hertsmere area.
Serving Potters Bar, Brookmans Park, Northaw, and Cuffley.
Full coverage across Watford and the Three Rivers district.
Experienced in St Albans conservation areas and listed buildings.
Covering Hatfield, Welham Green, Birchwood, and Old Hatfield.
Specialists in the WGC Conservation Area's Arts and Crafts properties.
Serving all parts of the London Borough of Barnet.
Covering Edgware, Canons Park, Burnt Oak, and Queensbury.
Serving Stanmore, Harrow Weald, Belmont, and the surrounding area.
Not sure if we cover your area? Call 07305 121634 — we serve a wide area across Hertfordshire and North London.