# HVAC for Commercial Construction, Renovations and Tenant Fit-Outs > Lancaster Heating and Cooling designs and installs heating, cooling and ventilation for commercial new builds, renovations and tenant fit-outs across Hamilton and Niagara. It checks whether existing equipment has the capacity for the new use, fabricates the ductwork in its own sheet metal shop, and, as part of Lancaster Group, coordinates electrical, plumbing, gas and combustion work so the project has one HVAC contractor and one schedule. Source: https://lancasterheatingandcooling.ca/commercial/construction/ Last updated: 2026-11-02 A new build, a renovation or a tenant fit-out changes how a space is used, and the heating, cooling and ventilation have to change with it. Lancaster Heating and Cooling designs and installs HVAC for commercial projects across Hamilton, Halton and Niagara, including full HVAC overhauls in buildings that stay open while the work is done. [Request a Project Quote](https://lancasterheatingandcooling.ca/quote/?inquiry=commercial-project) ## How we fit into your project - **Capacity check.** Can the existing rooftop or split equipment handle the new layout and use? We'll tell you what can stay and what has to change. - **Equipment sizing and selection.** Rooftop units, split and ductless systems, unit heaters and commercial water heaters, sized for the space. - **Ductwork from our own shop.** Duct systems, transitions, plenums and curb adapters are designed, built and installed by the same team. See [custom ductwork fabrication](https://lancasterheatingandcooling.ca/ductwork/fabrication/). - **The other trades.** As part of [Lancaster Group](https://www.lancastergroup.ca/), we can coordinate electrical, plumbing, gas and combustion work, so nothing falls between trades. - **One itemized proposal** covering the equipment, sheet metal and any electrical, plumbing or gas work. - **A schedule built around the building.** Crane lifts, shutdowns and noisy work planned around tenants, staff and customers. ## Bring us in early The best time to involve the HVAC contractor is while the layout is still on paper. Moving a wall is cheap before the ductwork is built and expensive after. Have these ready for the first conversation: - The floor plan and how each space will be used - The landlord's mechanical requirements, for a leased space - Your timeline and opening date - Any operating hours or times to avoid, if the building stays open ## Spaces we work in Offices, plazas and retail units, restaurants, medical and professional offices, multi-unit residential buildings, and shops, garages and light industrial spaces. Restaurants and other spaces with large kitchen or exhaust systems usually need make-up air as well. We can assess your exhaust and ventilation and recommend a solution. Planning a project? Call **905-388-3333** or [tell us about it](https://lancasterheatingandcooling.ca/quote/?inquiry=commercial-project). ## Construction and fit-out questions ### What should we know before starting a tenant fit-out? Bring us in early, while the layout is still being planned. We'll check whether the existing rooftop or split equipment has the capacity for the new use, then design the ductwork, which we fabricate in our own shop, along with any gas, electrical or plumbing changes. Have your floor plan and the landlord's mechanical requirements ready so the HVAC scope is right the first time. ### Can installations be scheduled around our business hours? Yes. We plan crane lifts, shutdowns and noisy work with you so your tenants, staff and customers stay as comfortable as possible, including in buildings that stay open during the project. Let us know your operating hours and any times to avoid when you [request a commercial quote](https://lancasterheatingandcooling.ca/quote/?inquiry=commercial-project), and we'll build the schedule around them. ### Can you handle the electrical and plumbing on an HVAC project? Yes. As part of Lancaster Group, we can coordinate electrical, plumbing, sheet metal and combustion work alongside your heating and cooling, so you deal with one team instead of several trades. On projects that need more than one trade, you get one point of contact, one schedule and one accountable team. ### Can the existing equipment be reused? Sometimes. It depends on the equipment's age and condition and whether it has the capacity for the new layout and use. A space that changes from offices to a restaurant or a clinic can need very different heating, cooling and ventilation. We'll assess it and tell you what can stay and what needs to change. --- **Lancaster Heating and Cooling** — HVAC contractor serving Hamilton, Niagara and surrounding areas since 1955. Phone (24/7 emergency): 905-388-3333 · Email: info@lancasterhvac.ca Address: 1250 Stone Church Rd. E, Hamilton, ON L8W 2C8, Canada · Hours: Monday – Friday: 8:00AM – 4:30PM Request a quote: https://lancasterheatingandcooling.ca/quote/