Field teamUniformed crews, clearly marked trucks
The same black-and-gold standard you see on the van shows up at the door: prepared, professional, and easy to identify.
Legendary Service. Legendary People.
We are the Gold Standard. Legendary HVAC and Plumbing.
Family-owned since 2008. Uniformed technicians, upfront flat-rate pricing, exact options before work begins, and a 5-star reputation earned one job site at a time.
5.0 from 600+ North Shore homeowners
Real crews. Real trucks. Real proof.
HVAC and plumbing under one roof, backed by exact-price conversations, clean job sites, marked vehicles, and a 100% satisfaction guarantee.
5.0★ rated
600+ Google reviews
Licensed & insured
Bonded technicians
24/7 dispatch
Same-day available
Since 2008
Family-owned
5.0★ rated
600+ Google reviews
Licensed & insured
Bonded technicians
24/7 dispatch
Same-day available
Since 2008
Family-owned
5.0660+ Google reviews· read them
- Family-owned since 2008
- 100% Satisfaction Guarantee
- Licensed & Insured
- 24/7 emergency dispatch
- Neighbor-recommended
Know your home
Every system under your roof, explained.
Half our job is teaching. Explore the cutaway home below — from the attic to the sewer line — to see how the heating & cooling, indoor air quality, and plumbing systems in a North Shore home actually work — what each one does, what tends to fail, and exactly where Legendary Service can help.
Illustration of a typical North Shore home — each number matches the guide below.Illustration of a typical North Shore home. Select a numbered marker to learn what each system does.
Heating & CoolingAll Heating & Cooling services
Furnace & heating
Basement
Your furnace is the heart of a Chicago winter — it pulls air across a heat exchanger and sends it up the duct trunk to every room. High-efficiency models turn 90%+ of every therm into heat you actually feel, and that margin matters most during the coldest week of January.
What fails first: ignitors, flame sensors, and cracked heat exchangers on systems past 15 years — usually on the coldest night of the season.
Explore furnace repair & replacement
Related: Seasonal Tune-Ups
Boiler & radiant heat
Basement
Many North Shore homes — especially the older estates — heat with hot water instead of forced air. The boiler warms a sealed loop that feeds radiators or radiant floors: quiet, even, dust-free heat when the system is balanced correctly.
What fails first: circulator pumps, expansion tanks, and air-bound loops that leave one room cold while another roasts.
AC condenser
Outside
The outdoor unit doesn't make cold air — it rejects the heat your system just pulled out of the house. On a humid July afternoon it works harder than anything else you own, which is why clean coils and clear airflow around it matter so much.
What fails first: capacitors around years 8–10, refrigerant leaks, and fan motors. “Running but not cooling” almost always starts here.
Explore air conditioning repair & installation
Related: Seasonal Tune-Ups
Cold-climate heat pump
Outside
A heat pump heats and cools with one system by moving heat instead of burning fuel — and modern cold-climate R-32 units hold their output deep below freezing. For many Lake County homes it is the most efficient path to year-round comfort.
Worth teaching: sizing and defrost configuration decide everything. An educated install is the difference between remarkable and disappointing.
Ductless mini-split
Upper floor
That slim wall unit is a ductless mini-split head — zoned heating and cooling for the rooms ductwork never reached. Additions, sunrooms, finished attics, and 1920s homes without duct chases are exactly what it was made for.
What fails first: clogged condensate lines and dirty blower wheels — both preventable with simple seasonal care.
Smart thermostat
Main floor
The thermostat is your home's brain: it decides when every system below it runs. Properly wired and configured, a smart thermostat learns your schedule, coordinates humidity, and typically trims 8–15% off heating and cooling costs.
What fails first: missing C-wires and mis-mapped staging — the reason many “smart” installs never deliver their savings.
Ductwork & sealing
Main floor
This duct trunk and its branches carry every degree of comfort you pay for. In a typical home, 15–25% of that conditioned air leaks into joist bays and wall cavities before it ever reaches a register.
The tell: rooms that never match the thermostat, dust that returns overnight, and utility bills that creep up every season.
Indoor Air QualityAll Indoor Air services
Whole-home air quality stack
Basement
Mounted on the return duct beside the furnace sits the equipment your lungs actually notice: a whole-home air purifier, a UV germicidal light over the coil, and HEPA-grade filtration. Every breath in the house passes through this spot several times a day.
Worth teaching: a 1-inch builder-grade filter protects the equipment, not the people. Whole-home purification is a different class of clean.
Explore whole-home air purification
Related: UV Germicidal LightsHEPA Filtration
Whole-home humidifier
Basement
Chicago winter air is desert-dry indoors — it cracks trim and hardwood, aggravates sinuses, and makes 68° feel like 64°. A duct-mounted humidifier holds the whole house at a balanced 35–45% relative humidity all season.
What fails first: hard-water scale on the water panel. It's a small annual part — ignored, the unit quietly stops helping.
Fresh-air ventilation
Attic
Tight, well-insulated homes are efficient — and stale. A ventilation system exchanges indoor air for filtered outdoor air on your terms, instead of relying on leaky windows to do the breathing for you.
The tell: lingering cooking odors, condensation on morning windows, and bedrooms that feel stuffy by 6 AM.
Attic ventilation & attic fan
Roof
The roofline breathes like a chimney: an attic fan or balanced soffit-and-ridge airflow pushes out the superheated air that builds under the shingles all summer. Keeping that space moving protects the roof deck, eases the load on your air conditioner, and helps stop winter ice dams before they form.
The tell: an upstairs that never quite cools down, a baking-hot attic hatch in July, and icicles at the eaves come January.
PlumbingAll Plumbing services
Water heater
Basement
Tank or tankless, this is the hardest-working appliance you own. We size it to your household's real hot-water habits and teach you both options side by side — the same recommendation standard we use in our own homes.
What fails first: sediment. That rumble you hear is hard-water scale baking onto the burner, stealing efficiency and years of service life.
Explore water heater repair & replacement
Related: Tankless Water Heaters
Sump pump
Basement
Down in that pit is the only machine standing between a spring storm and a finished-basement claim. It only has to fail once — which is why battery backup and an annual test are part of how we teach basement protection.
What fails first: stuck float switches and worn pumps discovered mid-storm. A typical unit is done in 7–10 years.
Water softener & filtration
Basement
Lake County water is famously hard, and every fixture downstream pays for it — scale shortens the life of water heaters, dishwashers, and faucets. Softening protects the equipment; filtration makes every tap taste the way it should.
The tell: white crust on fixtures, spotted glassware, and a water heater that rumbles years too early.
Related: Water Filtration
Kitchen & bath plumbing
Main floor
Faucets, toilets, showers, and the supply lines behind them — the small symptoms usually speak first. A drip you can hear, a toilet that runs at night, or pressure that wanders is your home teaching you where to look.
Worth teaching: one running toilet can waste 200+ gallons a day. Most fixture repairs are quick, flat-rate visits.
Explore faucet & fixture service
Related: ToiletsShowers & Bathtubs
Bathroom faucet & vanity
Upper floor
The vanity faucet is the hardest-working fixture upstairs, and the shutoff valves and supply lines beneath it matter as much as the finish above. A quality faucet, properly seated and sealed, should give you a decade of drip-free mornings.
What fails first: worn cartridges and aging supply lines — a slow drip here can quietly waste hundreds of gallons a month.
Explore faucet & fixture service
Related: Water Softeners
Toilet
Main floor
A modern toilet moves under 1.3 gallons per flush — less than half what many older North Shore homes still push through. The flapper, fill valve, and wax seal do quiet work every day, and each one has its own way of telling you it's tired.
Worth teaching: one running toilet can waste 200+ gallons a day. Most toilet repairs are quick, flat-rate visits.
Explore toilet repair & replacement
Related: Drain Cleaning
Shower & bathtub
Upper floor
Behind the shower wall, a pressure-balancing valve holds the water steady when a toilet flushes or the washer kicks on. When the temperature wanders or pressure drops mid-shower, that valve — not the showerhead — is usually the real story.
The tell: temperature swings, a drip from the tub spout, or grout-line moisture hinting at a failing valve or shower pan.
Explore shower & bathtub service
Related: Water Heaters
Sewer & water lines
Underground
Buried in the yard, your sewer lateral and water service work invisibly — until roots, clay-tile joints, or a belly in the line say otherwise. We camera the line first, so you see exactly what we see before anyone talks about digging.
The tell: slow drains everywhere at once, gurgling fixtures, or a soggy patch of lawn that never dries.
Explore sewer line inspection & repair
Related: Drain CleaningWater LinesGas Lines
Not sure which system is acting up? A real coordinator will help you figure it out.
What we do
Everything under your roof, handled by one team.
From the furnace in the basement to the fixtures in every bath, Legendary Service keeps your home comfortable, healthy, and running — no second contractor, no finger-pointing.
Resources
Read the right guide before you decide.
The Blog preserves imported Legendary articles. The Learning Center organizes new educational content by intent, so homeowners can learn, compare, and act without getting lost.
Field proof
The brand is not a badge. It is how the work shows up.
The real Legendary look is stronger than soft luxury: black trucks, saturated gold, uniformed technicians, and job-site clarity. That same contrast carries through the service experience — clear options, exact pricing, and no corners cut.
Field team
Plumbing proofDrain and excavation work without the mystery
For bigger plumbing jobs, the crew explains the site plan, protects the property, and keeps the homeowner clear on the next step.
HVAC proofEquipment service with teaching built in
Technicians show what they found, what it means, and the exact upfront price before work begins.
People are the product
Why homeowners stay with Legendary.
With roots going back to 2008, two best friends built this company on one belief: take care of your people, and they'll take care of everyone else. The technician at your door is hired for character first — and it shows in every visit.
"We recommend exactly what we'd install in our own home — and we don't lower our standard for any reason."
Educated to choose well
Half our job is teaching. We explain what's happening, why, and every option — so you make the right call for your home, with confidence.
Upfront flat-rate pricing
You approve the exact price before any work begins. No surprises, no meters running — just a clear number and a handshake.
Code is the bare minimum
We don't lower our standard for any reason. No corners are cut. We recommend exactly what we'd install in our own homes.
100% satisfaction, guaranteed
Every visit is backed by a full satisfaction guarantee. Our goal isn't one job — it's earning the next ten to twenty years of your trust.
The Legendary way
No surprises. Ever.
From the first call to the final walkthrough, every step is clear, upfront, and built around your decision — not ours.
01
Reach out
Call or request service online. A real coordinator answers — never a phone tree — and follows up to arrange a time that works for you.
02
Diagnose & educate
Your technician arrives on time, finds the root cause, and walks you through every option with clear, upfront pricing.
03
Approve the price
You see the flat-rate cost before work starts. Choose what's right for your home — no pressure, no hidden fees.
04
Legendary follow-through
We complete the work to a standard above code, tidy up, and back it with a 100% satisfaction guarantee.
From our neighbors
All reviews5-star rated, one home at a time.
Real words from North Shore homeowners who found their forever HVAC and plumbing company.
"Was very professional and thorough with his work. Overall, did a great job."
"Frank was exceptionally helpful and explained everything in detail, which I like. Without a doubt he knows his craft and I would definitely have him do any future projects or problems that I might have in my house. I am happy I found a plumber whom I can trust."
"Dominick did an excellent job in diagnosing my HVAC problem, was able to point to some major errors in the layout mini split system. Highly recommend him."
Proudly local
From Lake Forest to Barrington, our trucks know the way home.
Centered in Mundelein with a second hub in Des Plaines, we serve the affluent North Shore and the northwest suburbs across Lake, Cook, and McHenry counties. Local technicians, fast response, and a name your neighbors already trust.
- Antioch
- Deerfield
- Evanston
- Glencoe
- Gurnee
- Lake Forest
- Lake in the Hills
- Lincolnshire
- Lombard
- Morton Grove
- Mundelein
- Round Lake
Maintenance plans
Seasonal precision tune-ups, priority front-of-line scheduling, and members-only repair pricing. The easiest way to never think about comfort again.
View plansComfortable financing
A failing system shouldn't wait for the budget. Flexible monthly options can put a new, high-efficiency installation within reach — subject to credit approval.
Explore financingPlan & finance
See what your project could cost — per month
Choose what you’re considering and a financing plan to see an estimated monthly payment for your North Shore home. Estimates only — your exact, upfront flat-rate price is confirmed at your free in-home visit.
1. Choose what to take care of
2. Pick a financing plan
No obligation. No pressure.
Already have a quote? Get a free second opinion.
Before you spend thousands, let us review any quote you’ve received — at no cost. We’ll match the scope apples-to-apples and tell you straight whether it’s right. If their price is fair, we’ll say so.
- No obligation — we tell you straight, your decision
- Apples-to-apples — we match the original scope exactly
- We recommend only what we'd install in our own home
Prefer to talk? (847) 553-4041
Summarize the written quote in the required field, and have the complete quote ready for our callback.
You'll wish you called sooner
Comfort, handled — across the North Shore.
Tell us what's happening at your Lake County or Cook County home. You'll get upfront flat-rate pricing, a clear explanation before work begins, and the same above-code standard we'd want in our own homes.
Licensed & Insured · 5.0★ rated · Family-owned since 2008 · 24/7 emergency dispatch