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COMMERCIAL HVAC

Reliable Commercial HVAC Services & Preventative Maintenance

Zero-downtime rooftop unit (RTU) repairs, custom maintenance plans, and emergency
response for business owners and property managers.

Licensed PA HIC #PA225401
Priority Emergency Response
EPA Section 608 certified technicians
THE REAL COST

A Commercial Failure Is Not an Inconvenience. It Is Lost Revenue.

The maintenance trap: emergency repairs on equipment already past its service life are a diminishing return. Planned replacement is scheduled around your calendar; emergency replacement is scheduled around the failure.

WHY A MAINTENANCE PLAN PAYS

What a Commercial Agreement Actually Gets You

01

Eliminate Unexpected Downtime

A failed AC or heating unit halts operations, disrupts customers, and costs revenue. Our planned maintenance keeps your equipment running smoothly year-round, and catches the belt, bearing or contactor that would otherwise have picked its own moment.

02

Priority Emergency Dispatch

When heating or cooling goes down during extreme weather, commercial clients on a Preventative Maintenance agreement are scheduled ahead of general service calls.

03

Transparent Commercial Pricing

Clear, upfront estimates with no hidden surprises. You see the scope, the parts and the labour before work starts, and a maintenance agreement is quoted per unit so you can budget it as a line item rather than a surprise.

HOW THE PLANS WORK

Preventative Maintenance, Built Around Your Building:

We start with an equipment audit: what is on the roof or in the plant room, how old it is, what condition it is in, what it serves, and what a failure of each unit would actually cost you. That audit becomes the maintenance schedule – quarterly or bi-annual depending on run hours, filtration load and how critical the space is.

Every visit covers the same documented checklist: filters changed and sizes logged, belts and bearings checked, coils cleaned, drains cleared, refrigerant and electrical values recorded, and safety controls verified. You get the visit report, so the building’s history lives with the building rather than in a technician’s memory.

WHAT WE DO

Core Commercial HVAC Services

Rooftop Unit (RTU) Repair & Replacement

Complete installation, seasonal tune-ups, motor replacements, and coil washing for packaged RTUs – plus economizer and damper service, belt and bearing replacement, and refrigerant circuit diagnostics. Replacements are staged so the space stays usable while the changeover happens.

Commercial Preventative Maintenance (PM) Agreements

Custom quarterly or bi-annual filter, belt, and safety inspection schedules tailored to your building, with a documented report after every visit and priority scheduling when something does go wrong.

Make-Up Air & Exhaust Systems

Service and maintenance for commercial kitchens, restaurants, and industrial facilities: hood exhaust fans, make-up air units, belts, bearings and controls, and the balance between them, so a kitchen is not fighting its own negative pressure every service.

Commercial Ductless & Multi-Split Systems

Cooling solutions for server rooms, executive suites, and multi-tenant offices, where one zone needs cooling in January and the rest of the floor does not. Includes condensate management and per-zone control.

Multi-tenant offices and retail, restaurant and commercial kitchen operators who live and die by their exhaust and make-up air, small industrial facilities, and business owners who simply want one number to call when the building gets hot.

If you manage more than one property, the equipment audit and the maintenance schedule are built per building and quoted per unit, so you can compare sites and plan capital replacement.

WHO WE WORK WITH

Buildings We Look After

Book Your Commercial HVAC Equipment Audit

Custom PM plans - quarterly or bi-annual
WHY DES GROUP

Why Homeowners Trust Our Team

Transparent, Data-Driven Pricing

No arbitrary quotes. We ground our diagnostic assessments and quotes in clear technical metrics.

Licensed & Field-Tested HVAC, Roofing and Plumbing Engineers.

Every member of our team undergoes rigorous background checks and continuous regional code training.

Complete Home Protection

HVAC, Plumbing, and Roofing experts working together as one team, so you only ever have to make one call.

HOW IT WORKS

The Des Group Service Process

A clear path from the first photo to the final check — so you always know what is happening, and why.

1

Tell Us What's Wrong

Call us or send the request form below. Upload a few photos of the problem — a stain, a leaking fitting, the label on your furnace or water heater, a damaged patch of roof — so we can see it before we arrive.

2

Diagnose Before We Quote

We measure first: water pressure, moisture, airflow, temperatures, the condition of the materials. The quote is based on what is actually happening in your home, not on a guess from the doorway.

3

Clear Options, In Writing

You get what we found and what we recommend, including repair versus replacement, explained in plain language, with the price, before any work begins.

4

Do the Work, Then Test It

We complete the job, test it, clean up after ourselves and walk you through what was done, so you know the system is working before we leave.

1

Tell Us What's Wrong

Call us or send the request form below. Upload a few photos of the problem — a stain, a leaking fitting, the label on your furnace or water heater, a damaged patch of roof — so we can see it before we arrive.

2

Diagnose Before We Quote

We measure first: water pressure, moisture, airflow, temperatures, the condition of the materials. The quote is based on what is actually happening in your home, not on a guess from the doorway.

3

Clear Options, In Writing

You get what we found and what we recommend — including repair versus replacement where that’s the question — explained in plain language, with the price, before any work begins.

4

Do the Work, Then Test It

We complete the job, test it, clean up after ourselves and walk you through what was done, so you know the system is working before we leave.

FREQUENTLY ASKED QUESTIONS

Questions, Honestly Answered

Most buildings we look after run on either a quarterly or a bi-annual schedule, and the right answer depends on run hours, filtration load and how critical the space is. A restaurant kitchen with heavy grease loading and a rooftop unit running most of the year needs more visits than a two-storey office. The equipment audit is what sets the interval – we would rather write a schedule that fits the building than sell the same plan to everyone.

Filters changed and their sizes logged, belts and bearings checked and replaced when they are worn, condenser and evaporator coils cleaned, condensate drains cleared, refrigerant and electrical readings recorded, safety controls verified, and a written report after every visit. Agreement customers also get priority scheduling ahead of general service calls, and their repair work is quoted against the history we already hold for that unit.

Yes – and when heating or cooling goes down during extreme weather, commercial clients on a maintenance agreement are scheduled ahead of general service calls. That is the practical value of the agreement: on the day everyone in the county is calling, your building is already on the list and we already know what is on your roof.

It depends on the age of the unit, what has failed, what the repair costs against a replacement, and what the refrigerant situation looks like for that model. An older unit facing a compressor or coil failure is usually worth replacing on your schedule rather than repairing on its own. We will show you both numbers, with the equipment audit behind them, and let you make the call – and if replacement is the answer, it gets staged so the space stays usable.

Yes. Audits and schedules are built per building and quoted per unit, which is what makes a portfolio comparable: you can see which site is carrying the oldest equipment, where the repair spend is going, and what should be planned for capital replacement next year rather than next August.

Lansdale, Newtown, Holland, Doylestown, Montgomery County, Bucks County and Philadelphia. If your facility sits just outside that, call the commercial desk and we will tell you straight away whether we can cover it.