Updated: Dec 03, 2025
Location and Projects
Address
5975 Exchange Dr, Eldersburg, MD, 21784
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Design Flow Heating & Cooling LLC Photos
Design Flow Heating & Cooling LLC
Design Flow Heating and Cooling LLC was found in 2016 servicing the residential areas of Eldersburg, MD. We are a quality service/install company and love helping our customers. What sets us apart is our dedication to do what is right and to do everything in our power to ensure our customer is satisfied. To this end, we offer a 100% satisfaction guarantee on every job. Contact us today for your heating and cooling services!
From BuildZoom:
Design Flow Heating & Cooling LLC at 5975 Exchange Dr, Eldersburg, MD 21784, has a BuildZoom score of 0 and ranks in the top 99% of 58,058 Maryland contractors.
If you are thinking of hiring Design Flow Heating & Cooling LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Design Flow Heating & Cooling LLC Contact Information
Phone Number: (443) 878-8278
Address: 5975 Exchange Dr, Eldersburg, MD 21784
Design Flow Heating & Cooling LLC Eldersburg
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Design Flow Heating & Cooling LLC, log in and update your license info in the “Edit Profile” tab.
Activity
|
5 projects
|
2025 |
|
11 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Design Flow Heating & Cooling LLC has worked on at least
23.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
4 projects
|
Home Additions |
|
23 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Design Flow Heating & Cooling LLC mostly works on
hvac project
and home addition
projects.
Pricing
|
1 project
|
< $5k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Design Flow Heating & Cooling LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace existing propane gas furnace and air conditioning with water furnace geothermal 4 ton split system heat pump m#ndz049 & coil m#sraa048c bryant 100 000 btuh gas furnace m#926tc60100v21 april air air cleaner m#1210 april air steam humidifier m#800
Valuation:
N/A
Permit #:
M24001305
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Single family dwelling alteration basement remodel install ductless system wall mounted unit in basement office area and two transfer fans daikin indoor m#ftxf18axvju daikin outdoor m#rxf18axvju indoor wall mounted to right of newly installed window in maria's office area condenser to be located below 1st fl bathroom window on right side of home (orientation facing front from street) ... see more
Valuation:
N/A
Permit #:
M24001238
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
5689 harpers farm rd #f: like for like changeout of equipment- installing first co 2 ton split air conditioning thru the wall m#24wcx12-ab carrier 2 ton evaporator v coil m#cvpva2417xmc bryant 80% afue 70k btuh multi 18 speed ecm multipoise non-condensing gas furnace m#800sb36070m17 ecobee tstat m#eb-state3ltp-02 reconnect to existing gas supply line
Valuation:
N/A
Permit #:
M24001073
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential plumbing addition alteration permit
2024-09-16
5689 harpers farm rd #f: replace existing hvac system with first co 2 ton split air conditioning thru the wall m#24wcx12-ab carrier 2 ton evaporator v coil m#cvpva2417xmc bryant 80% afue 70k btuh multi 18 speed ecm multipoise non-condensing gas furnace m#800sb36070m17 ecobee tstat m#eb-state3ltp-02 reconnect to existing gas supply line
Valuation:
N/A
Permit #:
P24003974
Status:
canceled
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Replace existing gas furnace/ac with geothermal split system install geothermal water furnace 4 ton heat pump m#ndz049j 4 ton evap coil m#sraa048c communicating touch screen tstat m#tpcc32u02 bryant 100k btuh gas furnace m#926tc60100v21 april aire 1210 air purifier in basement
Valuation:
N/A
Permit #:
M24001027
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
• relocate right supply register in center of floor (family room) to near window on exterior wall • cut/cap left supply register in center of floor (family room) to nearest accessible to trunk duct • extend current kitchen supply near doorway to addition space on back exterior wall • addition (1) supply to addition space near doorway energy method = prescriptive method **need revised... see more
Valuation:
N/A
Permit #:
M24000339
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Replace existing natural gas furnace/air conditioning with natural gas furnace m#986td60080c21/heat pump m#293van04800a/coil m#caamp4821ama **amend description of work to say: replace existing natural gas furnace/air conditioning with natural gas furnace m#986td42080c17/heat pump m#293van04800a/coil m#caamp4821ama**04-25-25
Valuation:
N/A
Permit #:
M25000477
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Addition new ductless 2 zone system in single family dwelling. daikin ductless equipment: 1 outdoor unit m#3mxl24wmvju9 5 ton indoor wall mounted ductless m#ctxs07wvju9 and 1.5 ton indoor wall mounted ductless m#ftxs18wvju9
Valuation:
N/A
Permit #:
M24001140
Status:
complete
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
1.replace current hvac system with new waterfurnace nvv048 geothermal system 2.connect main house ducting system into single geothermal system 3. addition in 3 zone damper locations 4. convert ceiling returns to low wall returns in lower level-3 total 5. existing return duct to remain 6. existing duct to remain
Valuation:
N/A
Permit #:
M23001165
Status:
complete
Fee:
$182
Permit Type:
N/A
Building Type:
N/A
The dog wash/suite j emergency replacement of 3-ton heat pump split system. outdoor condenser located on wall mount fixed to building. air handler is like for like with no duct changes
Valuation:
N/A
Permit #:
B23004982
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
After demolish and disposal of existing ducting we will install new trunk duct system run outs and supply registers. all ducting is sized like for like and will be sealed with approved sealant and insulated to r8.0 value or greater. replace exhaust lines for 2 existing bathroom fans
Valuation:
N/A
Permit #:
M23001010
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Replace existing ac/coil with water furnace 3 ton geothermal heat pump m#w5sz036b01 evaporator coil m#a5dc036bnfa0 & tstat
Valuation:
N/A
Permit #:
M25001420
Status:
issued
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Installation of indoor in bump out of knee wall on front of home. ducted system to be rectangular trunk with flexible branch lines. supplies to terminate low in walls closer to front of home. returns to terminate high on opposite walls. ducting for returns to run under flooring of second floor. ceiling below will need to be removed in order to route ducting
Valuation:
N/A
Permit #:
M21000763
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Like for like replacement of existing system: installing goodman 4 ton heat pump 5 ton coil 80k btuh gas furnace
Valuation:
N/A
Permit #:
M25001018
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
2023-12-06
Removing single zone ductless condenser and adding a 2 zone ductless mxz2c20nahz4u1 with an additional indoor head mszfs06nau1. reusing 1 indoor head that is already there
Valuation:
N/A
Permit #:
M23001291
Status:
complete
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Installing new 1.5 ton mitsubishi ductless minisplit system in attic area. outdoor unit muz-fs18nau1 indoor unit-msz-fs18nau1
Valuation:
N/A
Permit #:
M24000292
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Installing new 1.5 ton mitsubishi ductless minisplit system in attic area. outdoor unit muz-fs18nau1 indoor unit-msz-fs18nau1
Valuation:
N/A
Permit #:
M24000278
Status:
canceled
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Removing customers pellet stove and air conditioning. replacing with a new install of 96% natural gas furnace with air conditioning and coil
Valuation:
N/A
Permit #:
431214
Status:
complete
Fee:
$105
Permit Type:
Plumbperm
Building Type:
N/A
Converted two heat pumps 1 - 4 ton & 1 - 2 ton to 1- 6 ton heat pump with zoning and electronic damper system (geothermal system)
Valuation:
N/A
Permit #:
M24000626
Status:
complete
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Replacing existing furnace - bryant 80%afue 90000btu 4 way noncondensing 33-1/3 gas furnace (propane). piping is 1/2 inch
Valuation:
N/A
Permit #:
P22004397
Status:
complete
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Design Flow Heating & Cooling LLC Reviews
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Design Flow Heating & Cooling LLC License info
Unverified License
| Status | Unable To Verify |
- BuildZoom was not able to verify this license with the licensing board
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Design Flow Heating & Cooling LLC, log in and update your license info in the “Edit Profile” tab.
68
Permits
- Building permit records show that Design Flow Heating & Cooling LLC has worked on 68 permitted projects.